Working with PDF Conformance
6 Oct 2020 / 24 minutes to read
The Essential PDF currently supports the following PDF conformances:
- PDF/A-1a conformance
- PDF/A-1b conformance
- PDF/X-1a conformance
- PDF/A-2a conformance
- PDF/A-2b conformance
- PDF/A-2u conformance
- PDF/A-3a conformance
- PDF/A-3b conformance
- PDF/A-3u conformance
NOTE
- To know more details about PDF/A standard refer https://en.wikipedia.org/wiki/PDF/A#Description
- To know more details about PDF/X standard refer https://en.wikipedia.org/wiki/PDF/X
NOTE
Essential PDF supports PDF conformances only in Windows Forms, WPF, ASP.NET and ASP.NET MVC platforms.
PDF/A-1b conformance
You can create a PDF/A-1b document by specifying the conformance level as Pdf_A1B through PdfConformanceLevel Enum when creating the new PDF document, as shown below.
//Create a new document with PDF/A-1b standard.
PdfDocument document = new PdfDocument(PdfConformanceLevel.Pdf_A1B);
//Add a page.
PdfPage page = document.Pages.Add();
//Create PDF graphics for the page.
PdfGraphics graphics = page.Graphics;
//Create a solid brush.
PdfBrush brush = new PdfSolidBrush(Color.Black);
Font font = new Font("Arial", 20f, FontStyle.Regular);
//Set the font.
PdfFont pdfFont = new PdfTrueTypeFont(font, FontStyle.Regular, 12, false, true);
//Draw the text.
graphics.DrawString("Hello world!", pdfFont, brush, new PointF(20, 20));
//Save and close the document.
document.Save("Output.pdf");
document.Close(true);'Create a new document with PDF/A-1b standard.
Dim document As New PdfDocument(PdfConformanceLevel.Pdf_A1B)
'Add a page.
Dim page As PdfPage = document.Pages.Add()
'Create PDF graphics for the page.
Dim graphics As PdfGraphics = page.Graphics
'Create a solid brush.
Dim brush As PdfBrush = New PdfSolidBrush(Color.Black)
Dim font As New Font("Arial", 20.0F, FontStyle.Regular)
'Set the font.
Dim pdfFont As PdfFont = New PdfTrueTypeFont(font, FontStyle.Regular, 12, False, True)
'Draw the text.
graphics.DrawString("Hello world!", pdfFont, brush, New PointF(20, 20))
'Save and close the document.
document.Save("Output.pdf")
document.Close(True)//Create a new document with PDF/A-1b standard
PdfDocument document = new PdfDocument(PdfConformanceLevel.Pdf_A1B);
//Add a page to the document
PdfPage page = document.Pages.Add();
//Create PDF graphics for the page
PdfGraphics graphics = page.Graphics;
//Load the TrueType font from the local file
Stream fontStream = typeof(MainPage).GetTypeInfo().Assembly.GetManifestResourceStream("Sample.Assets.Data.Arial.ttf");
//Initialize the PDF TrueType font
PdfFont font = new PdfTrueTypeFont(fontStream, 14);
//Draw the text
graphics.DrawString("Hello World!!!", font, PdfBrushes.Black, new PointF(0, 0));
//Save the document into memory stream
MemoryStream stream = new MemoryStream();
await document.SaveAsync(stream);
//Close the document
document.Close(true);
//Save the stream as PDF document file in local machine. Refer to the PDF/UWP section for respected code samples
Save(stream, "Output.pdf");//Create a new document with PDF/A-1b standard
PdfDocument document = new PdfDocument(PdfConformanceLevel.Pdf_A1B);
//Add a page to the document
PdfPage page = document.Pages.Add();
//Create PDF graphics for the page
PdfGraphics graphics = page.Graphics;
//Load the TrueType font from the local file
FileStream fontStream = new FileStream("Arial.ttf", FileMode.Open, FileAccess.Read);
PdfFont font = new PdfTrueTypeFont(fontStream, 14);
//Draw the text
graphics.DrawString("Hello World!!!", font, PdfBrushes.Black, new Syncfusion.Drawing.PointF(0, 0));
//Creating the stream object
MemoryStream stream = new MemoryStream();
//Save the document into memory stream
document.Save(stream);
//If the position is not set to '0', then the PDF will be empty
stream.Position = 0;
//Close the document
document.Close(true);
//Defining the ContentType for PDF file
string contentType = "application/pdf";
//Define the file name
string fileName = "Output.pdf";
//Creates a FileContentResult object by using the file contents, content type, and file name
return File(stream, contentType, fileName);//Create a new document with PDF/A-1b standard
PdfDocument document = new PdfDocument(PdfConformanceLevel.Pdf_A1B);
//Add a page to the document
PdfPage page = document.Pages.Add();
//Create PDF graphics for the page
PdfGraphics graphics = page.Graphics;
//Load the TrueType font
Stream fontStream = typeof(MainPage).GetTypeInfo().Assembly.GetManifestResourceStream("Sample.Assets.Arial.ttf");
//Initialize the PDF TrueType font
PdfFont font = new PdfTrueTypeFont(fontStream, 14);
//Draw the text
graphics.DrawString("Hello World!!!", font, PdfBrushes.Black, new Syncfusion.Drawing.PointF(0, 0));
//Save the document into memory stream
MemoryStream stream = new MemoryStream();
document.Save(stream);
//Close the document
document.Close(true);
//Save the stream into PDF file
//The operation in Save under Xamarin varies between Windows Phone, Android, and iOS platforms. Refer to the PDF/Xamarin section for respective code samples
if (Device.RuntimePlatform == Device.UWP)
{
Xamarin.Forms.DependencyService.Get<ISaveWindowsPhone>().Save("Output.pdf", "application/pdf", stream);
}
else
{
Xamarin.Forms.DependencyService.Get<ISave>().Save("Output.pdf", "application/pdf", stream);
}PDF/A-2b conformance
You can create a PDF/A-2b document by specifying the conformance level as Pdf_A2B through PdfConformanceLevel Enum when creating the new PDF document as follows.
//Create a new document with PDF/A-2b standard
PdfDocument document = new PdfDocument(PdfConformanceLevel.Pdf_A2B);
//Add a page
PdfPage page = document.Pages.Add();
//Create PDF graphics for the page
PdfGraphics graphics = page.Graphics;
//Create a solid brush
PdfBrush brush = new PdfSolidBrush(Color.Black);
Font font = new Font("Arial", 20f, FontStyle.Regular);
//Set the font
PdfFont pdfFont = new PdfTrueTypeFont(font, FontStyle.Regular, 12, false, true);
//Draw the text
graphics.DrawString("Hello world!", pdfFont, brush, new PointF(20, 20));
//Save and close the document
document.Save("Output.pdf");
document.Close(true);'Create a new document with PDF/A-2b standard
Dim document As New PdfDocument(PdfConformanceLevel.Pdf_A2B)
'Add a page
Dim page As PdfPage = document.Pages.Add()
'Create PDF graphics for the page
Dim graphics As PdfGraphics = page.Graphics
'Create a solid brush
Dim brush As PdfBrush = New PdfSolidBrush(Color.Black)
Dim font As New Font("Arial", 20.0F, FontStyle.Regular)
'Set the font
Dim pdfFont As PdfFont = New PdfTrueTypeFont(font, FontStyle.Regular, 12, False, True)
'Draw the text
graphics.DrawString("Hello world!", pdfFont, brush, New PointF(20, 20))
'Save and close the document
document.Save("Output.pdf")
document.Close(True)//Create a new document with PDF/A-2b standard
PdfDocument document = new PdfDocument(PdfConformanceLevel.Pdf_A2B);
//Add a page to the document
PdfPage page = document.Pages.Add();
//Create PDF graphics for the page
PdfGraphics graphics = page.Graphics;
//Load the TrueType font from the local file
Stream fontStream = typeof(MainPage).GetTypeInfo().Assembly.GetManifestResourceStream("Sample.Assets.Data.Arial.ttf");
//Initialize the PDF TrueType font
PdfFont font = new PdfTrueTypeFont(fontStream, 14);
//Draw the text
graphics.DrawString("Hello World!!!", font, PdfBrushes.Black, new PointF(0, 0));
//Save the document into memory stream
MemoryStream stream = new MemoryStream();
await document.SaveAsync(stream);
//Close the document
document.Close(true);
//Save the stream as PDF document file in local machine. Refer to the PDF/UWP section for respective code samples
Save(stream, "Output.pdf");//Create a new document with PDF/A-2b standard
PdfDocument document = new PdfDocument(PdfConformanceLevel.Pdf_A2B);
//Add a page to the document
PdfPage page = document.Pages.Add();
//Create PDF graphics for the page
PdfGraphics graphics = page.Graphics;
//Load the TrueType font from the local file
FileStream fontStream = new FileStream("Arial.ttf", FileMode.Open, FileAccess.Read);
PdfFont font = new PdfTrueTypeFont(fontStream, 14);
//Draw the text
graphics.DrawString("Hello World!!!", font, PdfBrushes.Black, new Syncfusion.Drawing.PointF(0, 0));
//Creating the stream object
MemoryStream stream = new MemoryStream();
//Save the document into memory stream
document.Save(stream);
//If the position is not set to '0', then the PDF will be empty
stream.Position = 0;
//Close the document
document.Close(true);
//Defining the ContentType for PDF file
string contentType = "application/pdf";
//Define the file name
string fileName = "Output.pdf";
//Creates a FileContentResult object by using the file contents, content type, and file name
return File(stream, contentType, fileName);//Create a new document with PDF/A-2b standard
PdfDocument document = new PdfDocument(PdfConformanceLevel.Pdf_A2B);
//Add a page to the document
PdfPage page = document.Pages.Add();
//Create PDF graphics for the page
PdfGraphics graphics = page.Graphics;
//Load the TrueType font
Stream fontStream = typeof(MainPage).GetTypeInfo().Assembly.GetManifestResourceStream("Sample.Assets.Arial.ttf");
//Initialize the PDF TrueType font
PdfFont font = new PdfTrueTypeFont(fontStream, 14);
//Draw the text
graphics.DrawString("Hello World!!!", font, PdfBrushes.Black, new Syncfusion.Drawing.PointF(0, 0));
//Save the document into memory stream
MemoryStream stream = new MemoryStream();
document.Save(stream);
//Close the document
document.Close(true);
//Save the stream into PDF file
//The operation in Save under Xamarin varies between Windows Phone, Android, and iOS platforms. Refer to the PDF/Xamarin section for respective code samples
if (Device.RuntimePlatform == Device.UWP)
{
Xamarin.Forms.DependencyService.Get<ISaveWindowsPhone>().Save("Output.pdf", "application/pdf", stream);
}
else
{
Xamarin.Forms.DependencyService.Get<ISave>().Save("Output.pdf", "application/pdf", stream);
}PDF/A-3b conformance
The PDF/A-3b conformance supports the external files as attachment to the PDF document, so you can attach any document format such as Excel, Word, HTML, CAD, or XML files.
You can create a PDF/A-3b document by specifying the conformance level as Pdf_A3B through PdfConformanceLevel Enum when creating the new PDF document as follows.
//Create a new document with PDF/A-3b standard
PdfDocument document = new PdfDocument(PdfConformanceLevel.Pdf_A3B);
//Add a page
PdfPage page = document.Pages.Add();
//Creates an attachment
PdfAttachment attachment = new PdfAttachment("Input.txt");
attachment.Relationship = PdfAttachmentRelationship.Alternative;
attachment.ModificationDate = DateTime.Now;
attachment.Description = "Input.txt";
attachment.MimeType = "application/txt";
//Adds the attachment to the document
document.Attachments.Add(attachment);
//Create PDF graphics for the page
PdfGraphics graphics = page.Graphics;
//Create a solid brush
PdfBrush brush = new PdfSolidBrush(Color.Black);
Font font = new Font("Arial", 20f, FontStyle.Regular);
//Set the font
PdfFont pdfFont = new PdfTrueTypeFont(font, FontStyle.Regular, 12, false, true);
//Draw the text
graphics.DrawString("Hello world!", pdfFont, brush, new PointF(20, 20));
//Save and close the document
document.Save("Output.pdf");
document.Close(true);'Create a new document with PDF/A-3b standard
Dim document As New PdfDocument(PdfConformanceLevel.Pdf_A3B)
'Add a page
Dim page As PdfPage = document.Pages.Add()
'Creates an attachment
Dim attachment As New PdfAttachment("Input.txt")
attachment.Relationship = PdfAttachmentRelationship.Alternative
attachment.ModificationDate = DateTime.Now
attachment.Description = "Input.txt"
attachment.MimeType = "application/txt"
'Adds the attachment to the document
document.Attachments.Add(attachment)
'Create PDF graphics for the page
Dim graphics As PdfGraphics = page.Graphics
'Create a solid brush
Dim brush As PdfBrush = New PdfSolidBrush(Color.Black)
Dim font As New Font("Arial", 20.0F, FontStyle.Regular)
'Set the font
Dim pdfFont As PdfFont = New PdfTrueTypeFont(font, FontStyle.Regular, 12, False, True)
'Draw the text
graphics.DrawString("Hello world!", pdfFont, brush, New PointF(20, 20))
'Save and close the document
document.Save("Output.pdf")
document.Close(True)//Create a new document with PDF/A-3b standard
PdfDocument document = new PdfDocument(PdfConformanceLevel.Pdf_A3B);
//Add a page to the document
PdfPage page = document.Pages.Add();
//Creates an attachment
Stream fileStream = typeof(MainPage).GetTypeInfo().Assembly.GetManifestResourceStream("Sample.Assets.Data.Input.txt");
PdfAttachment attachment = new PdfAttachment(@"Input.txt", fileStream);
attachment.Relationship = PdfAttachmentRelationship.Alternative;
attachment.ModificationDate = DateTime.Now;
attachment.Description = "Input.txt";
attachment.MimeType = "application/txt";
//Adds the attachment to the document
document.Attachments.Add(attachment);
//Create PDF graphics for the page
PdfGraphics graphics = page.Graphics;
//Load the TrueType font from the local file
Stream fontStream = typeof(MainPage).GetTypeInfo().Assembly.GetManifestResourceStream("Sample.Assets.Data.Arial.ttf");
//Initialize the PDF TrueType font
PdfFont font = new PdfTrueTypeFont(fontStream, 14);
//Draw the text
graphics.DrawString("Hello World!!!", font, PdfBrushes.Black, new PointF(0, 0));
//Save the document into memory stream
MemoryStream stream = new MemoryStream();
await document.SaveAsync(stream);
//Close the document
document.Close(true);
//Save the stream as PDF document file in local machine. Refer to the PDF/UWP section for respected code samples
Save(stream, "Output.pdf");//Create a new document with PDF/A-3b standard
PdfDocument document = new PdfDocument(PdfConformanceLevel.Pdf_A3B);
//Add a page to the document
PdfPage page = document.Pages.Add();
//Creates an attachment
Stream fileStream = new FileStream("Input.txt", FileMode.Open, FileAccess.Read);
PdfAttachment attachment = new PdfAttachment("Input.txt", fileStream);
attachment.Relationship = PdfAttachmentRelationship.Alternative;
attachment.ModificationDate = DateTime.Now;
attachment.Description = "Input.txt";
attachment.MimeType = "application/txt";
//Adds the attachment to the document
document.Attachments.Add(attachment);
//Create PDF graphics for the page
PdfGraphics graphics = page.Graphics;
//Load the TrueType font from the local file
FileStream fontStream = new FileStream("Arial.ttf", FileMode.Open, FileAccess.Read);
PdfFont font = new PdfTrueTypeFont(fontStream, 14);
//Draw the text
graphics.DrawString("Hello World!!!", font, PdfBrushes.Black, new Syncfusion.Drawing.PointF(0, 0));
//Creating the stream object
MemoryStream stream = new MemoryStream();
//Save the document into memory stream
document.Save(stream);
//If the position is not set to '0', then the PDF will be empty
stream.Position = 0;
//Close the document
document.Close(true);
//Defining the ContentType for PDF file
string contentType = "application/pdf";
//Define the file name
string fileName = "Output.pdf";
//Creates a FileContentResult object by using the file contents, content type, and file name
return File(stream, contentType, fileName);//Create a new document with PDF/A-3b standard
PdfDocument document = new PdfDocument(PdfConformanceLevel.Pdf_A3B);
//Add a page to the document
PdfPage page = document.Pages.Add();
Stream fileStream = typeof(App).GetTypeInfo().Assembly.GetManifestResourceStream("Sample.Assets.Input.txt");
PdfAttachment attachment = new PdfAttachment("Input.txt", fileStream);
attachment.Relationship = PdfAttachmentRelationship.Alternative;
attachment.ModificationDate = DateTime.Now;
attachment.Description = "Input.txt";
attachment.MimeType = "application/txt";
//Adds the attachment to the document
document.Attachments.Add(attachment);
//Create PDF graphics for the page
PdfGraphics graphics = page.Graphics;
//Load the TrueType font
Stream fontStream = typeof(MainPage).GetTypeInfo().Assembly.GetManifestResourceStream("Sample.Assets.Arial.ttf");
//Initialize the PDF TrueType font
PdfFont font = new PdfTrueTypeFont(fontStream, 14);
//Draw the text
graphics.DrawString("Hello World!!!", font, PdfBrushes.Black, new Syncfusion.Drawing.PointF(0, 0));
//Save the document into memory stream
MemoryStream stream = new MemoryStream();
document.Save(stream);
//Close the document
document.Close(true);
//Save the stream into PDF file
//The operation in Save under Xamarin varies between Windows Phone, Android, and iOS platforms. Refer to the PDF/Xamarin section for respective code samples
if (Device.RuntimePlatform == Device.UWP)
{
Xamarin.Forms.DependencyService.Get<ISaveWindowsPhone>().Save("Output.pdf", "application/pdf", stream);
}
else
{
Xamarin.Forms.DependencyService.Get<ISave>().Save("Output.pdf", "application/pdf", stream);
}PDF/A-1a conformance
PDF/A-1a conformance includes all PDF/A-1b requirements in addition to the features intended to improve a document’s accessibility. PDF/A-1a conformance additionally have crucial properties of Tagged PDF.
You can create a PDF/A-1a document by specifying the conformance level as Pdf_A1A through PdfConformanceLevel Enum when creating the new PDF document, as shown below.
//Create a new document with PDF/A-1a standard.
PdfDocument document = new PdfDocument(PdfConformanceLevel.Pdf_A1A);
//Add a page.
PdfPage page = document.Pages.Add();
//Create PDF graphics for the page.
PdfGraphics graphics = page.Graphics;
//Create a solid brush.
PdfBrush brush = new PdfSolidBrush(Color.Black);
Font font = new Font("Arial", 20f, FontStyle.Regular);
//Set the font.
PdfFont pdfFont = new PdfTrueTypeFont(font, FontStyle.Regular, 12, false, true);
//Draw the text.
graphics.DrawString("Hello world!", pdfFont, brush, new PointF(20, 20));
//Save and close the document.
document.Save("Output.pdf");
document.Close(true);'Create a new document with PDF/A-1a standard.
Dim document As New PdfDocument(PdfConformanceLevel.Pdf_A1A)
'Add a page.
Dim page As PdfPage = document.Pages.Add()
'Create PDF graphics for the page.
Dim graphics As PdfGraphics = page.Graphics
'Create a solid brush.
Dim brush As PdfBrush = New PdfSolidBrush(Color.Black)
Dim font As New Font("Arial", 20.0F, FontStyle.Regular)
'Set the font.
Dim pdfFont As PdfFont = New PdfTrueTypeFont(font, FontStyle.Regular, 12, False, True)
'Draw the text.
graphics.DrawString("Hello world!", pdfFont, brush, New PointF(20, 20))
'Save and close the document.
document.Save("Output.pdf")
document.Close(True)//Create a new document with PDF/A-1a standard
PdfDocument document = new PdfDocument(PdfConformanceLevel.Pdf_A1A);
//Add a page to the document
PdfPage page = document.Pages.Add();
//Create PDF graphics for the page
PdfGraphics graphics = page.Graphics;
//Load the TrueType font from the local file
FileStream fontStream = new FileStream("Arial.ttf", FileMode.Open, FileAccess.Read);
PdfFont font = new PdfTrueTypeFont(fontStream, 14);
//Draw the text
graphics.DrawString("Hello World!!!", font, PdfBrushes.Black, new Syncfusion.Drawing.PointF(0, 0));
//Creating the stream object
MemoryStream stream = new MemoryStream();
//Save the document into memory stream
document.Save(stream);
//If the position is not set to '0', then the PDF will be empty
stream.Position = 0;
//Close the document
document.Close(true);
//Defining the ContentType for PDF file
string contentType = "application/pdf";
//Define the file name
string fileName = "Output.pdf";
//Creates a FileContentResult object by using the file contents, content type, and file name
return File(stream, contentType, fileName);//Create a new document with PDF/A-1a standard
PdfDocument document = new PdfDocument(PdfConformanceLevel.Pdf_A1A);
//Add a page to the document
PdfPage page = document.Pages.Add();
//Create PDF graphics for the page
PdfGraphics graphics = page.Graphics;
//Load the TrueType font
Stream fontStream = typeof(MainPage).GetTypeInfo().Assembly.GetManifestResourceStream("Sample.Assets.Arial.ttf");
//Initialize the PDF TrueType font
PdfFont font = new PdfTrueTypeFont(fontStream, 14);
//Draw the text
graphics.DrawString("Hello World!!!", font, PdfBrushes.Black, new Syncfusion.Drawing.PointF(0, 0));
//Save the document into memory stream
MemoryStream stream = new MemoryStream();
document.Save(stream);
//Close the document
document.Close(true);
//Save the stream into PDF file
//The operation in Save under Xamarin varies between Windows Phone, Android, and iOS platforms. Refer to the PDF/Xamarin section for respective code samples
if (Device.RuntimePlatform == Device.UWP)
{
Xamarin.Forms.DependencyService.Get<ISaveWindowsPhone>().Save("Output.pdf", "application/pdf", stream);
}
else
{
Xamarin.Forms.DependencyService.Get<ISave>().Save("Output.pdf", "application/pdf", stream);
}PDF/A-2a conformance
PDF/A-2a conformance includes all PDF/A-2b requirements in addition to the features intended to improve a document’s accessibility. PDF/A-2a conformance additionally have crucial properties of Tagged PDF.
You can create a PDF/A-2a document by specifying the conformance level as Pdf_A2A through PdfConformanceLevel Enum when creating the new PDF document as follows.
//Create a new document with PDF/A-2a standard
PdfDocument document = new PdfDocument(PdfConformanceLevel.Pdf_A2A);
//Add a page
PdfPage page = document.Pages.Add();
//Create PDF graphics for the page
PdfGraphics graphics = page.Graphics;
//Create a solid brush
PdfBrush brush = new PdfSolidBrush(Color.Black);
Font font = new Font("Arial", 20f, FontStyle.Regular);
//Set the font
PdfFont pdfFont = new PdfTrueTypeFont(font, FontStyle.Regular, 12, false, true);
//Draw the text
graphics.DrawString("Hello world!", pdfFont, brush, new PointF(20, 20));
//Save and close the document
document.Save("Output.pdf");
document.Close(true);'Create a new document with PDF/A-2a standard
Dim document As New PdfDocument(PdfConformanceLevel.Pdf_A2A)
'Add a page
Dim page As PdfPage = document.Pages.Add()
'Create PDF graphics for the page
Dim graphics As PdfGraphics = page.Graphics
'Create a solid brush
Dim brush As PdfBrush = New PdfSolidBrush(Color.Black)
Dim font As New Font("Arial", 20.0F, FontStyle.Regular)
'Set the font
Dim pdfFont As PdfFont = New PdfTrueTypeFont(font, FontStyle.Regular, 12, False, True)
'Draw the text
graphics.DrawString("Hello world!", pdfFont, brush, New PointF(20, 20))
'Save and close the document
document.Save("Output.pdf")
document.Close(True)//Create a new document with PDF/A-2a standard
PdfDocument document = new PdfDocument(PdfConformanceLevel.Pdf_A2A);
//Add a page to the document
PdfPage page = document.Pages.Add();
//Create PDF graphics for the page
PdfGraphics graphics = page.Graphics;
//Load the TrueType font from the local file
Stream fontStream = typeof(MainPage).GetTypeInfo().Assembly.GetManifestResourceStream("Sample.Assets.Data.Arial.ttf");
//Initialize the PDF TrueType font
PdfFont font = new PdfTrueTypeFont(fontStream, 14);
//Draw the text
graphics.DrawString("Hello World!!!", font, PdfBrushes.Black, new PointF(0, 0));
//Save the document into memory stream
MemoryStream stream = new MemoryStream();
await document.SaveAsync(stream);
//Close the document
document.Close(true);
//Save the stream as PDF document file in local machine. Refer to the PDF/UWP section for respective code samples
Save(stream, "Output.pdf");//Create a new document with PDF/A-2a standard
PdfDocument document = new PdfDocument(PdfConformanceLevel.Pdf_A2A);
//Add a page to the document
PdfPage page = document.Pages.Add();
//Create PDF graphics for the page
PdfGraphics graphics = page.Graphics;
//Load the TrueType font from the local file
FileStream fontStream = new FileStream("Arial.ttf", FileMode.Open, FileAccess.Read);
PdfFont font = new PdfTrueTypeFont(fontStream, 14);
//Draw the text
graphics.DrawString("Hello World!!!", font, PdfBrushes.Black, new Syncfusion.Drawing.PointF(0, 0));
//Creating the stream object
MemoryStream stream = new MemoryStream();
//Save the document into memory stream
document.Save(stream);
//If the position is not set to '0', then the PDF will be empty
stream.Position = 0;
//Close the document
document.Close(true);
//Defining the ContentType for PDF file
string contentType = "application/pdf";
//Define the file name
string fileName = "Output.pdf";
//Creates a FileContentResult object by using the file contents, content type, and file name
return File(stream, contentType, fileName);//Create a new document with PDF/A-2a standard
PdfDocument document = new PdfDocument(PdfConformanceLevel.Pdf_A2A);
//Add a page to the document
PdfPage page = document.Pages.Add();
//Create PDF graphics for the page
PdfGraphics graphics = page.Graphics;
//Load the TrueType font
Stream fontStream = typeof(MainPage).GetTypeInfo().Assembly.GetManifestResourceStream("Sample.Assets.Arial.ttf");
//Initialize the PDF TrueType font
PdfFont font = new PdfTrueTypeFont(fontStream, 14);
//Draw the text
graphics.DrawString("Hello World!!!", font, PdfBrushes.Black, new Syncfusion.Drawing.PointF(0, 0));
//Save the document into memory stream
MemoryStream stream = new MemoryStream();
document.Save(stream);
//Close the document
document.Close(true);
//Save the stream into PDF file
//The operation in Save under Xamarin varies between Windows Phone, Android, and iOS platforms. Refer to the PDF/Xamarin section for respective code samples
if (Device.RuntimePlatform == Device.UWP)
{
Xamarin.Forms.DependencyService.Get<ISaveWindowsPhone>().Save("Output.pdf", "application/pdf", stream);
}
else
{
Xamarin.Forms.DependencyService.Get<ISave>().Save("Output.pdf", "application/pdf", stream);
}PDF/A-3a conformance
PDF/A-3a conformance includes all PDF/A-3b requirements in addition to the features intended to improve a document’s accessibility. PDF/A-3a conformance additionally have crucial properties of Tagged PDF.
You can create a PDF/A-3a document by specifying the conformance level as Pdf_A3A through PdfConformanceLevel Enum when creating the new PDF document as follows.
//Create a new document with PDF/A-3a standard
PdfDocument document = new PdfDocument(PdfConformanceLevel.Pdf_A3A);
//Add a page
PdfPage page = document.Pages.Add();
//Creates an attachment
PdfAttachment attachment = new PdfAttachment("Input.txt");
attachment.Relationship = PdfAttachmentRelationship.Alternative;
attachment.ModificationDate = DateTime.Now;
attachment.Description = "Input.txt";
attachment.MimeType = "application/txt";
//Adds the attachment to the document
document.Attachments.Add(attachment);
//Create PDF graphics for the page
PdfGraphics graphics = page.Graphics;
//Create a solid brush
PdfBrush brush = new PdfSolidBrush(Color.Black);
Font font = new Font("Arial", 20f, FontStyle.Regular);
//Set the font
PdfFont pdfFont = new PdfTrueTypeFont(font, FontStyle.Regular, 12, false, true);
//Draw the text
graphics.DrawString("Hello world!", pdfFont, brush, new PointF(20, 20));
//Save and close the document
document.Save("Output.pdf");
document.Close(true);'Create a new document with PDF/A-3a standard
Dim document As New PdfDocument(PdfConformanceLevel.Pdf_A3A)
'Add a page
Dim page As PdfPage = document.Pages.Add()
'Creates an attachment
Dim attachment As New PdfAttachment("Input.txt")
attachment.Relationship = PdfAttachmentRelationship.Alternative
attachment.ModificationDate = DateTime.Now
attachment.Description = "Input.txt"
attachment.MimeType = "application/txt"
'Adds the attachment to the document
document.Attachments.Add(attachment)
'Create PDF graphics for the page
Dim graphics As PdfGraphics = page.Graphics
'Create a solid brush
Dim brush As PdfBrush = New PdfSolidBrush(Color.Black)
Dim font As New Font("Arial", 20.0F, FontStyle.Regular)
'Set the font
Dim pdfFont As PdfFont = New PdfTrueTypeFont(font, FontStyle.Regular, 12, False, True)
'Draw the text
graphics.DrawString("Hello world!", pdfFont, brush, New PointF(20, 20))
'Save and close the document
document.Save("Output.pdf")
document.Close(True)//Create a new document with PDF/A-3a standard
PdfDocument document = new PdfDocument(PdfConformanceLevel.Pdf_A3A);
//Add a page to the document
PdfPage page = document.Pages.Add();
//Creates an attachment
Stream fileStream = typeof(MainPage).GetTypeInfo().Assembly.GetManifestResourceStream("Sample.Assets.Data.Input.txt");
PdfAttachment attachment = new PdfAttachment(@"Input.txt", fileStream);
attachment.Relationship = PdfAttachmentRelationship.Alternative;
attachment.ModificationDate = DateTime.Now;
attachment.Description = "Input.txt";
attachment.MimeType = "application/txt";
//Adds the attachment to the document
document.Attachments.Add(attachment);
//Create PDF graphics for the page
PdfGraphics graphics = page.Graphics;
//Load the TrueType font from the local file
Stream fontStream = typeof(MainPage).GetTypeInfo().Assembly.GetManifestResourceStream("Sample.Assets.Data.Arial.ttf");
//Initialize the PDF TrueType font
PdfFont font = new PdfTrueTypeFont(fontStream, 14);
//Draw the text
graphics.DrawString("Hello World!!!", font, PdfBrushes.Black, new PointF(0, 0));
//Save the document into memory stream
MemoryStream stream = new MemoryStream();
await document.SaveAsync(stream);
//Close the document
document.Close(true);
//Save the stream as PDF document file in local machine. Refer to the PDF/UWP section for respected code samples
Save(stream, "Output.pdf");//Create a new document with PDF/A-3a standard
PdfDocument document = new PdfDocument(PdfConformanceLevel.Pdf_A3A);
//Add a page to the document
PdfPage page = document.Pages.Add();
//Creates an attachment
Stream fileStream = new FileStream("Input.txt", FileMode.Open, FileAccess.Read);
PdfAttachment attachment = new PdfAttachment("Input.txt", fileStream);
attachment.Relationship = PdfAttachmentRelationship.Alternative;
attachment.ModificationDate = DateTime.Now;
attachment.Description = "Input.txt";
attachment.MimeType = "application/txt";
//Adds the attachment to the document
document.Attachments.Add(attachment);
//Create PDF graphics for the page
PdfGraphics graphics = page.Graphics;
//Load the TrueType font from the local file
FileStream fontStream = new FileStream("Arial.ttf", FileMode.Open, FileAccess.Read);
PdfFont font = new PdfTrueTypeFont(fontStream, 14);
//Draw the text
graphics.DrawString("Hello World!!!", font, PdfBrushes.Black, new Syncfusion.Drawing.PointF(0, 0));
//Creating the stream object
MemoryStream stream = new MemoryStream();
//Save the document into memory stream
document.Save(stream);
//If the position is not set to '0', then the PDF will be empty
stream.Position = 0;
//Close the document
document.Close(true);
//Defining the ContentType for PDF file
string contentType = "application/pdf";
//Define the file name
string fileName = "Output.pdf";
//Creates a FileContentResult object by using the file contents, content type, and file name
return File(stream, contentType, fileName);//Create a new document with PDF/A-3a standard
PdfDocument document = new PdfDocument(PdfConformanceLevel.Pdf_A3A);
//Add a page to the document
PdfPage page = document.Pages.Add();
Stream fileStream = typeof(App).GetTypeInfo().Assembly.GetManifestResourceStream("Sample.Assets.Input.txt");
PdfAttachment attachment = new PdfAttachment("Input.txt", fileStream);
attachment.Relationship = PdfAttachmentRelationship.Alternative;
attachment.ModificationDate = DateTime.Now;
attachment.Description = "Input.txt";
attachment.MimeType = "application/txt";
//Adds the attachment to the document
document.Attachments.Add(attachment);
//Create PDF graphics for the page
PdfGraphics graphics = page.Graphics;
//Load the TrueType font
Stream fontStream = typeof(MainPage).GetTypeInfo().Assembly.GetManifestResourceStream("Sample.Assets.Arial.ttf");
//Initialize the PDF TrueType font
PdfFont font = new PdfTrueTypeFont(fontStream, 14);
//Draw the text
graphics.DrawString("Hello World!!!", font, PdfBrushes.Black, new Syncfusion.Drawing.PointF(0, 0));
//Save the document into memory stream
MemoryStream stream = new MemoryStream();
document.Save(stream);
//Close the document
document.Close(true);
//Save the stream into PDF file
//The operation in Save under Xamarin varies between Windows Phone, Android, and iOS platforms. Refer to the PDF/Xamarin section for respective code samples
if (Device.RuntimePlatform == Device.UWP)
{
Xamarin.Forms.DependencyService.Get<ISaveWindowsPhone>().Save("Output.pdf", "application/pdf", stream);
}
else
{
Xamarin.Forms.DependencyService.Get<ISave>().Save("Output.pdf", "application/pdf", stream);
}PDF/A-2u conformance
PDF/A-2u conformance includes all PDF/A-2b requirements, and additionally Unicode mapping for all text in the document.
You can create a PDF/A-2u document by specifying the conformance level as Pdf_A2U through PdfConformanceLevel Enum when creating the new PDF document as follows.
//Create a new document with PDF/A-2u standard
PdfDocument document = new PdfDocument(PdfConformanceLevel.Pdf_A2U);
//Add a page
PdfPage page = document.Pages.Add();
//Create PDF graphics for the page
PdfGraphics graphics = page.Graphics;
//Create a solid brush
PdfBrush brush = new PdfSolidBrush(Color.Black);
Font font = new Font("Arial", 20f, FontStyle.Regular);
//Set the font
PdfFont pdfFont = new PdfTrueTypeFont(font, FontStyle.Regular, 12, false, true);
//Draw the text
graphics.DrawString("Hello world!", pdfFont, brush, new PointF(20, 20));
//Save and close the document
document.Save("Output.pdf");
document.Close(true);'Create a new document with PDF/A-2u standard
Dim document As New PdfDocument(PdfConformanceLevel.Pdf_A2U)
'Add a page
Dim page As PdfPage = document.Pages.Add()
'Create PDF graphics for the page
Dim graphics As PdfGraphics = page.Graphics
'Create a solid brush
Dim brush As PdfBrush = New PdfSolidBrush(Color.Black)
Dim font As New Font("Arial", 20.0F, FontStyle.Regular)
'Set the font
Dim pdfFont As PdfFont = New PdfTrueTypeFont(font, FontStyle.Regular, 12, False, True)
'Draw the text
graphics.DrawString("Hello world!", pdfFont, brush, New PointF(20, 20))
'Save and close the document
document.Save("Output.pdf")
document.Close(True)//Create a new document with PDF/A-2u standard
PdfDocument document = new PdfDocument(PdfConformanceLevel.Pdf_A2U);
//Add a page to the document
PdfPage page = document.Pages.Add();
//Create PDF graphics for the page
PdfGraphics graphics = page.Graphics;
//Load the TrueType font from the local file
Stream fontStream = typeof(MainPage).GetTypeInfo().Assembly.GetManifestResourceStream("Sample.Assets.Data.Arial.ttf");
//Initialize the PDF TrueType font
PdfFont font = new PdfTrueTypeFont(fontStream, 14);
//Draw the text
graphics.DrawString("Hello World!!!", font, PdfBrushes.Black, new PointF(0, 0));
//Save the document into memory stream
MemoryStream stream = new MemoryStream();
await document.SaveAsync(stream);
//Close the document
document.Close(true);
//Save the stream as PDF document file in local machine. Refer to the PDF/UWP section for respective code samples
Save(stream, "Output.pdf");//Create a new document with PDF/A-2u standard
PdfDocument document = new PdfDocument(PdfConformanceLevel.Pdf_A2U);
//Add a page to the document
PdfPage page = document.Pages.Add();
//Create PDF graphics for the page
PdfGraphics graphics = page.Graphics;
//Load the TrueType font from the local file
FileStream fontStream = new FileStream("Arial.ttf", FileMode.Open, FileAccess.Read);
PdfFont font = new PdfTrueTypeFont(fontStream, 14);
//Draw the text
graphics.DrawString("Hello World!!!", font, PdfBrushes.Black, new Syncfusion.Drawing.PointF(0, 0));
//Creating the stream object
MemoryStream stream = new MemoryStream();
//Save the document into memory stream
document.Save(stream);
//If the position is not set to '0', then the PDF will be empty
stream.Position = 0;
//Close the document
document.Close(true);
//Defining the ContentType for PDF file
string contentType = "application/pdf";
//Define the file name
string fileName = "Output.pdf";
//Creates a FileContentResult object by using the file contents, content type, and file name
return File(stream, contentType, fileName);//Create a new document with PDF/A-2u standard
PdfDocument document = new PdfDocument(PdfConformanceLevel.Pdf_A2U);
//Add a page to the document
PdfPage page = document.Pages.Add();
//Create PDF graphics for the page
PdfGraphics graphics = page.Graphics;
//Load the TrueType font
Stream fontStream = typeof(MainPage).GetTypeInfo().Assembly.GetManifestResourceStream("Sample.Assets.Arial.ttf");
//Initialize the PDF TrueType font
PdfFont font = new PdfTrueTypeFont(fontStream, 14);
//Draw the text
graphics.DrawString("Hello World!!!", font, PdfBrushes.Black, new Syncfusion.Drawing.PointF(0, 0));
//Save the document into memory stream
MemoryStream stream = new MemoryStream();
document.Save(stream);
//Close the document
document.Close(true);
//Save the stream into PDF file
//The operation in Save under Xamarin varies between Windows Phone, Android, and iOS platforms. Refer to the PDF/Xamarin section for respective code samples
if (Device.RuntimePlatform == Device.UWP)
{
Xamarin.Forms.DependencyService.Get<ISaveWindowsPhone>().Save("Output.pdf", "application/pdf", stream);
}
else
{
Xamarin.Forms.DependencyService.Get<ISave>().Save("Output.pdf", "application/pdf", stream);
}PDF/A-3u conformance
PDF/A-3u conformance includes all PDF/A-3b requirements, and additionally Unicode mapping for all text in the document.
You can create a PDF/A-3u document by specifying the conformance level as Pdf_A3U through PdfConformanceLevel Enum when creating the new PDF document as follows.
//Create a new document with PDF/A-3u standard
PdfDocument document = new PdfDocument(PdfConformanceLevel.Pdf_A3U);
//Add a page
PdfPage page = document.Pages.Add();
//Creates an attachment
PdfAttachment attachment = new PdfAttachment("Input.txt");
attachment.Relationship = PdfAttachmentRelationship.Alternative;
attachment.ModificationDate = DateTime.Now;
attachment.Description = "Input.txt";
attachment.MimeType = "application/txt";
//Adds the attachment to the document
document.Attachments.Add(attachment);
//Create PDF graphics for the page
PdfGraphics graphics = page.Graphics;
//Create a solid brush
PdfBrush brush = new PdfSolidBrush(Color.Black);
Font font = new Font("Arial", 20f, FontStyle.Regular);
//Set the font
PdfFont pdfFont = new PdfTrueTypeFont(font, FontStyle.Regular, 12, false, true);
//Draw the text
graphics.DrawString("Hello world!", pdfFont, brush, new PointF(20, 20));
//Save and close the document
document.Save("Output.pdf");
document.Close(true);'Create a new document with PDF/A-3u standard
Dim document As New PdfDocument(PdfConformanceLevel.Pdf_A3U)
'Add a page
Dim page As PdfPage = document.Pages.Add()
'Creates an attachment
Dim attachment As New PdfAttachment("Input.txt")
attachment.Relationship = PdfAttachmentRelationship.Alternative
attachment.ModificationDate = DateTime.Now
attachment.Description = "Input.txt"
attachment.MimeType = "application/txt"
'Adds the attachment to the document
document.Attachments.Add(attachment)
'Create PDF graphics for the page
Dim graphics As PdfGraphics = page.Graphics
'Create a solid brush
Dim brush As PdfBrush = New PdfSolidBrush(Color.Black)
Dim font As New Font("Arial", 20.0F, FontStyle.Regular)
'Set the font
Dim pdfFont As PdfFont = New PdfTrueTypeFont(font, FontStyle.Regular, 12, False, True)
'Draw the text
graphics.DrawString("Hello world!", pdfFont, brush, New PointF(20, 20))
'Save and close the document
document.Save("Output.pdf")
document.Close(True)//Create a new document with PDF/A-3u standard
PdfDocument document = new PdfDocument(PdfConformanceLevel.Pdf_A3U);
//Add a page to the document
PdfPage page = document.Pages.Add();
//Creates an attachment
Stream fileStream = typeof(MainPage).GetTypeInfo().Assembly.GetManifestResourceStream("Sample.Assets.Data.Input.txt");
PdfAttachment attachment = new PdfAttachment(@"Input.txt", fileStream);
attachment.Relationship = PdfAttachmentRelationship.Alternative;
attachment.ModificationDate = DateTime.Now;
attachment.Description = "Input.txt";
attachment.MimeType = "application/txt";
//Adds the attachment to the document
document.Attachments.Add(attachment);
//Create PDF graphics for the page
PdfGraphics graphics = page.Graphics;
//Load the TrueType font from the local file
Stream fontStream = typeof(MainPage).GetTypeInfo().Assembly.GetManifestResourceStream("Sample.Assets.Data.Arial.ttf");
//Initialize the PDF TrueType font
PdfFont font = new PdfTrueTypeFont(fontStream, 14);
//Draw the text
graphics.DrawString("Hello World!!!", font, PdfBrushes.Black, new PointF(0, 0));
//Save the document into memory stream
MemoryStream stream = new MemoryStream();
await document.SaveAsync(stream);
//Close the document
document.Close(true);
//Save the stream as PDF document file in local machine. Refer to the PDF/UWP section for respected code samples
Save(stream, "Output.pdf");//Create a new document with PDF/A-3u standard
PdfDocument document = new PdfDocument(PdfConformanceLevel.Pdf_A3U);
//Add a page to the document
PdfPage page = document.Pages.Add();
//Creates an attachment
Stream fileStream = new FileStream("Input.txt", FileMode.Open, FileAccess.Read);
PdfAttachment attachment = new PdfAttachment("Input.txt", fileStream);
attachment.Relationship = PdfAttachmentRelationship.Alternative;
attachment.ModificationDate = DateTime.Now;
attachment.Description = "Input.txt";
attachment.MimeType = "application/txt";
//Adds the attachment to the document
document.Attachments.Add(attachment);
//Create PDF graphics for the page
PdfGraphics graphics = page.Graphics;
//Load the TrueType font from the local file
FileStream fontStream = new FileStream("Arial.ttf", FileMode.Open, FileAccess.Read);
PdfFont font = new PdfTrueTypeFont(fontStream, 14);
//Draw the text
graphics.DrawString("Hello World!!!", font, PdfBrushes.Black, new Syncfusion.Drawing.PointF(0, 0));
//Creating the stream object
MemoryStream stream = new MemoryStream();
//Save the document into memory stream
document.Save(stream);
//If the position is not set to '0', then the PDF will be empty
stream.Position = 0;
//Close the document
document.Close(true);
//Defining the ContentType for PDF file
string contentType = "application/pdf";
//Define the file name
string fileName = "Output.pdf";
//Creates a FileContentResult object by using the file contents, content type, and file name
return File(stream, contentType, fileName);//Create a new document with PDF/A-3u standard
PdfDocument document = new PdfDocument(PdfConformanceLevel.Pdf_A3U);
//Add a page to the document
PdfPage page = document.Pages.Add();
Stream fileStream = typeof(App).GetTypeInfo().Assembly.GetManifestResourceStream("Sample.Assets.Input.txt");
PdfAttachment attachment = new PdfAttachment("Input.txt", fileStream);
attachment.Relationship = PdfAttachmentRelationship.Alternative;
attachment.ModificationDate = DateTime.Now;
attachment.Description = "Input.txt";
attachment.MimeType = "application/txt";
//Adds the attachment to the document
document.Attachments.Add(attachment);
//Create PDF graphics for the page
PdfGraphics graphics = page.Graphics;
//Load the TrueType font
Stream fontStream = typeof(MainPage).GetTypeInfo().Assembly.GetManifestResourceStream("Sample.Assets.Arial.ttf");
//Initialize the PDF TrueType font
PdfFont font = new PdfTrueTypeFont(fontStream, 14);
//Draw the text
graphics.DrawString("Hello World!!!", font, PdfBrushes.Black, new Syncfusion.Drawing.PointF(0, 0));
//Save the document into memory stream
MemoryStream stream = new MemoryStream();
document.Save(stream);
//Close the document
document.Close(true);
//Save the stream into PDF file
//The operation in Save under Xamarin varies between Windows Phone, Android, and iOS platforms. Refer to the PDF/Xamarin section for respective code samples
if (Device.RuntimePlatform == Device.UWP)
{
Xamarin.Forms.DependencyService.Get<ISaveWindowsPhone>().Save("Output.pdf", "application/pdf", stream);
}
else
{
Xamarin.Forms.DependencyService.Get<ISave>().Save("Output.pdf", "application/pdf", stream);
}PDF/X-1a conformance
You can create a PDF/X-1a document by specifying the conformance level as Pdf_X1A2001 through PdfConformanceLevel Enum when creating the new PDF document, as shown below.
//Create a new document with PDF/x standard.
PdfDocument document = new PdfDocument(PdfConformanceLevel.Pdf_X1A2001);
//Add a page.
PdfPage page = document.Pages.Add();
document.ColorSpace = PdfColorSpace.CMYK;
//Create Pdf graphics for the page.
PdfGraphics graphics = page.Graphics;
//Create a solid brush.
PdfBrush brush = new PdfSolidBrush(Color.Black);
Font font = new Font("Arial",20f, FontStyle.Regular);
//Set the font.
PdfFont pdfFont = new PdfTrueTypeFont(font, FontStyle.Regular, 12, false, true);
//Draw the text.
graphics.DrawString("Hello world!", pdfFont, brush, new PointF(20, 20));
//Save and close the document.
document.Save("Output.pdf");
document.Close(true);'Create a new document with PDF/x standard.
Dim document As New PdfDocument(PdfConformanceLevel.Pdf_X1A2001)
'Add a page.
Dim page As PdfPage = document.Pages.Add()
'set ColorSpace
document.ColorSpace = PdfColorSpace.CMYK
'Create Pdf graphics for the page.
Dim graphics As PdfGraphics = page.Graphics
'Create a solid brush.
Dim brush As PdfBrush = New PdfSolidBrush(Color.Black)
Dim font As New Font("Arial", 20.0F, FontStyle.Regular)
'Set the font.
Dim pdfFont As PdfFont = New PdfTrueTypeFont(font, FontStyle.Regular, 12, False, True)
'Draw the text.
graphics.DrawString("Hello world!", font, brush, New PointF(20, 20))
'Save and close the document.
document.Save("Output.pdf")
document.Close(True)PDF to PDF/A conversion
An existing PDF document can be converted to PDF/A conformance document, by setting the Conformance value in the PdfLoadedDocument to Pdf_A1B,Pdf_A2B, and Pdf_A3B of PdfConformanceLevel. Refer to the following code sample to achieve the same.
NOTE
To convert the existing PDF to PDF/A conformance document in .NET Core, you need to include the Syncfusion.Pdf.Imaging.Portable assembly reference in the .NET Core project.
//Load an existing PDF.
PdfLoadedDocument loadedDocument = new PdfLoadedDocument("Input.pdf");
//Set the conformance for PDF/A-1b conversion.
loadedDocument.Conformance = PdfConformanceLevel.Pdf_A1B;
//Save and close the document.
loadedDocument.Save("Output.pdf");
loadedDocument.Close(true);'Load an existing PDF.
Dim document As New PdfLoadedDocument("Input.pdf")
'Set the conformance for PDF/A-1b conversion.
loadedDocument.Conformance = PdfConformanceLevel.Pdf_A1B
'Save and close the document.
loadedDocument.Save("Output.pdf")
loadedDocument.Close(True)//Load an existing PDF document
FileStream docStream = new FileStream(@"Input.pdf", FileMode.Open, FileAccess.Read);
PdfLoadedDocument loadedDocument = new PdfLoadedDocument(docStream);
//Sample level font event handling
loadedDocument.SubstituteFont += LoadedDocument_SubstituteFont ;
//Convert the loaded document to PDF/A document
loadedDocument.ConvertToPDFA(PdfConformanceLevel.Pdf_A1B);
MemoryStream stream = new MemoryStream();
//Save the document
loadedDocument.Save(stream);
stream.Position = 0;
//Close the document
loadedDocument.Close(true);
//Defining the ContentType for pdf file
string contentType = "application/pdf";
//Define the file name
string fileName = "output.pdf";
//Creates a FileContentResult object by using the file contents, content type, and file name
return File(stream, contentType, fileName);To convert an existing PDF document to the PDFA document in .NET Core, you need to substitute the non-embedded fonts in the input document. Refer to the the following code sample to achieve the same.
static void LoadedDocument_SubstituteFont(object sender, PdfFontEventArgs args)
{
//get the font name
string fontName = args.FontName.Split(',')[0];
//get the font style
PdfFontStyle fontStyle = args.FontStyle;
SKFontStyle sKFontStyle = SKFontStyle.Normal;
if (fontStyle != PdfFontStyle.Regular)
{
if (fontStyle == PdfFontStyle.Bold)
{
sKFontStyle = SKFontStyle.Bold;
}
else if (fontStyle == PdfFontStyle.Italic)
{
sKFontStyle = SKFontStyle.Italic;
}
else if (fontStyle == (PdfFontStyle.Italic | PdfFontStyle.Bold))
{
sKFontStyle = SKFontStyle.BoldItalic;
}
}
SKTypeface typeface = SKTypeface.FromFamilyName(fontName, sKFontStyle);
SKStreamAsset typeFaceStream = typeface.OpenStream();
MemoryStream memoryStream = null;
if (typeFaceStream != null && typeFaceStream.Length > 0)
{
//Create the fontData from the type face stream.
byte[] fontData = new byte[typeFaceStream.Length - 1];
typeFaceStream.Read(fontData, typeFaceStream.Length);
typeFaceStream.Dispose();
//Create the new memory stream from the font data.
memoryStream = new MemoryStream(fontData);
}
//set the font stream to the event args.
args.FontStream = memoryStream;
}NOTE
- Converting PDF to PDF/X-1a conformance document is not supported.
- CMYK color space images and symbolic fonts are not supported.
- From the .NET Framework 3.5 version, the Essential PDF is compatible with the PDF to PDF/A conversion.
Get PDF Conformance Level
You can find the conformance level of the existing PDF document using the Conformance property. Refer to the following code sample to get the conformance level of the existing PDF document.
//Load an existing PDF.
PdfLoadedDocument loadedDocument = new PdfLoadedDocument("Input.pdf");
//Get the conformance level of the loaded document.
PdfConformanceLevel conformance = loadedDocument.Conformance;
//close the document.
loadedDocument.Close(true);'Load an existing PDF.
Dim document As New PdfLoadedDocument("Input.pdf")
'Get the conformance level of the loaded document.
PdfConformanceLevel conformance = loadedDocument.Conformance;
'close the document.
loadedDocument.Close(True)//Create the file open picker
var picker = new FileOpenPicker();
picker.FileTypeFilter.Add(".pdf");
//Browse and choose the file
StorageFile file = await picker.PickSingleFileAsync();
//Creates an empty PDF loaded document instance.
PdfLoadedDocument loadedDocument = new PdfLoadedDocument();
//Loads or opens an existing PDF document through Open method of the PdfLoadedDocument class
await loadedDocument.OpenAsync(file);
//Get the conformance level of the loaded document.
PdfConformanceLevel conformance = loadedDocument.Conformance;
//Close the document.
loadedDocument.Close(true);//Load an existing PDF document
FileStream docStream = new FileStream(@"Input.pdf", FileMode.Open, FileAccess.Read);
PdfLoadedDocument loadedDocument = new PdfLoadedDocument(docStream);
//Get the conformance level of the loaded document.
PdfConformanceLevel conformance = loadedDocument.Conformance;
//close the document.
loadedDocument.Close(true);//Load the file as a stream
Stream docStream = typeof(App).GetTypeInfo().Assembly.GetManifestResourceStream("Sample.Assets.Sample.pdf");
PdfLoadedDocument loadedDocument = new PdfLoadedDocument(docStream);
//Get the conformance level of the loaded document.
PdfConformanceLevel conformance = loadedDocument.Conformance;
//Close the document
loadedDocument.Close(true);
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