Working with Named Destination
2 Sep 202411 minutes to read
Essential PDF provides support to add, remove and modify the named destination in the PDF document. When you open a PDF file in a web browser, the first page of the PDF file will be shown by default. By adding a named destination, you can open the PDF with the desired location and magnification. The following link example shows how to open a PDF document with named destination in a web page.
Another example that uses “nameddest” parameter in URL:
e.g. Named Destination document
Points to remembers:
- Individual parameters, together with their values (separated by & or #), can be no greater than 32 characters in length.
- You cannot use the reserved characters =, #, and &. There is no way to escape these special characters.
Adding Named Destination to a PDF document
You can add, remove and modify the named destination using PdfNamedDestination class.
The following code example shows how to add named destination in a new PDF document.
//Create a new PDF document.
PdfDocument doc = new PdfDocument();
//Add a page to the document.
PdfPage page = doc.Pages.Add();
//Create an instance for named destination.
PdfNamedDestination destination = new PdfNamedDestination("TOC");
destination.Destination = new PdfDestination(page);
//Set the location.
destination.Destination.Location = new PointF(0, 500);
//Set zoom factor to 400 percentage.
destination.Destination.Zoom = 4;
doc.NamedDestinationCollection.Add(destination);
//Draw the text.
page.Graphics.DrawString("Hello World!!", new PdfStandardFont(PdfFontFamily.Helvetica, 10), PdfBrushes.Black, new PointF(0, 500));
//Save the document into stream.
MemoryStream stream = new MemoryStream();
doc.Save(stream);
//Closes the document
doc.Close(true);//Create a new PDF document.
PdfDocument doc = new PdfDocument();
//Add a page to the document.
PdfPage page = doc.Pages.Add();
//Create an instance for named destination.
PdfNamedDestination destination = new PdfNamedDestination("TOC");
destination.Destination = new PdfDestination(page);
//Set the location.
destination.Destination.Location = new PointF(0, 500);
//Set zoom factor to 400 percentage.
destination.Destination.Zoom = 4;
doc.NamedDestinationCollection.Add(destination);
//Draw the text.
page.Graphics.DrawString("Hello World!!", new PdfStandardFont(PdfFontFamily.Helvetica, 10), PdfBrushes.Black, new PointF(0, 500));
//Save the document.
doc.Save("Output.pdf");
//Close the document.
doc.Close(true);'Create a new PDF document.
Dim doc As New PdfDocument()
'Add a page to the document.
Dim page As PdfPage = doc.Pages.Add()
'Create an instance for named destination.
Dim destination As New PdfNamedDestination("TOC")
destination.Destination = New PdfDestination(page)
'Set the location
destination.Destination.Location = New PointF(0, 500)
'Set zoom factor to 400 percentage
destination.Destination.Zoom = 4
doc.NamedDestinationCollection.Add(destination)
'Draw the text.
page.Graphics.DrawString("Hello World!!", New PdfStandardFont(PdfFontFamily.Helvetica, 10), PdfBrushes.Black, New PointF(0, 500))
'Save the document.
doc.Save("Output.pdf")
'Close the document.
doc.Close(True)You can download a complete working sample from GitHub.
Adding Named Destination to an existing PDF document
The following code example shows how to add named destination in an existing PDF document using the PdfNamedDestination class.
//Load the PDF document.
FileStream docStream = new FileStream("Input.pdf", FileMode.Open, FileAccess.Read);
PdfLoadedDocument loadedDocument = new PdfLoadedDocument(docStream);
//Get the first page of the document.
PdfPageBase page = loadedDocument.Pages[0];
//Create an instance for named destination.
PdfNamedDestination destination = new PdfNamedDestination("TOC");
destination.Destination = new PdfDestination(page);
//Set the location.
destination.Destination.Location = new PointF(0, 500);
//Set zoom factor to 400 percentage
destination.Destination.Zoom = 4;
loadedDocument.NamedDestinationCollection.Add(destination);
//Save the document into stream.
MemoryStream stream = new MemoryStream();
loadedDocument.Save(stream);
//Closes the document.
loadedDocument.Close(true);//Load the PDF document.
PdfLoadedDocument loadedDocument = new PdfLoadedDocument("Input.pdf");
//Get the first page of the document.
PdfPageBase page = loadedDocument.Pages[0];
//Create an instance for named destination.
PdfNamedDestination destination = new PdfNamedDestination("TOC");
destination.Destination = new PdfDestination(page);
//Set the location.
destination.Destination.Location = new PointF(0, 500);
//Set zoom factor to 400 percentage.
destination.Destination.Zoom = 4;
loadedDocument.NamedDestinationCollection.Add(destination);
//Save the document.
loadedDocument.Save("Output.pdf");
//Close the document.
loadedDocument.Close(true);'Load the PDF document.
Dim loadedDocument As New PdfLoadedDocument("Input.pdf")
'Get the first page of the document.
Dim page As PdfPageBase = loadedDocument.Pages(0)
'Create an instance for named destination.
Dim destination As New PdfNamedDestination("TOC")
destination.Destination = New PdfDestination(page)
'Set the location.
destination.Destination.Location = New PointF(0, 500)
'Set zoom factor to 400 percentage.
destination.Destination.Zoom = 4
loadedDocument.NamedDestinationCollection.Add(destination)
'Save the document.
loadedDocument.Save("Output.pdf")
'Close the document.
loadedDocument.Close(True)You can download a complete working sample from GitHub.
Removing/Modifying the named destination
You can remove the named destination using Remove method of PdfNamedDestinationCollection. The following code snippet illustrates the same.
//Load the PDF document.
FileStream docStream = new FileStream("Barcode.pdf", FileMode.Open, FileAccess.Read);
PdfLoadedDocument lDoc = new PdfLoadedDocument(docStream);
//Get the named destination collection.
PdfNamedDestinationCollection destinationCollection = lDoc.NamedDestinationCollection;
//Remove the named destination by title.
destinationCollection.Remove("TOC");
//Modify the exiting named destination.
PdfNamedDestination destination = destinationCollection[0];
destination.Title = "POC";
//Save the document into stream.
MemoryStream stream = new MemoryStream();
lDoc.Save(stream);
//Close the document.
lDoc.Close(true);//Load the PDF document.
PdfLoadedDocument lDoc = new PdfLoadedDocument("Sample.pdf");
//Get the named destination collection.
PdfNamedDestinationCollection destinationCollection = lDoc.NamedDestinationCollection;
//Remove the named destination by title.
destinationCollection.Remove("TOC");
//Modify the exiting named destination.
PdfNamedDestination destination = destinationCollection[0];
destination.Title = "POC";
//Save the document.
lDoc.Save("Output.pdf");
//Close the document.
lDoc.Close(true);'Load the PDF document.
Dim lDoc As New PdfLoadedDocument("Sample.pdf")
'Get the named destination collection.
Dim destinationCollection As PdfNamedDestinationCollection = lDoc.NamedDestinationCollection
'Remove the named destination by title.
destinationCollection.Remove("TOC")
'Modify the exiting named destination.
Dim destination As PdfNamedDestination = destinationCollection(0)
destination.Title = "POC"
'Save the document.
lDoc.Save("Output.pdf")
'Close the document.
lDoc.Close(True)You can download a complete working sample from GitHub.
Adding named destination to the bookmarks
The following code example shows how to add named destination to the Bookmarks in the PDF document.
//Create a new PDF document.
PdfDocument doc = new PdfDocument();
//Add a page to the document.
PdfPage page = doc.Pages.Add();
//Create an instance for named destination.
PdfNamedDestination destination = new PdfNamedDestination("TOC");
destination.Destination = new PdfDestination(page);
//Set the location.
destination.Destination.Location = new PointF(0, 800);
//Set zoom factor to 400 percentage
destination.Destination.Zoom = 4;
//Add the named destination to the collection
doc.NamedDestinationCollection.Add(destination);
//Create a bookmark.
PdfBookmark bookmark = doc.Bookmarks.Add("TOC");
//Assign the named destination to the bookmark.
bookmark.NamedDestination = destination;
//Save the document into stream.
MemoryStream stream = new MemoryStream();
doc.Save(stream);
stream.Position = 0;
//Close the document.
doc.Close(true);//Create a new PDF document.
PdfDocument doc = new PdfDocument();
//Add a page to the document.
PdfPage page = doc.Pages.Add();
//Create an instance for named destination.
PdfNamedDestination destination = new PdfNamedDestination("TOC");
destination.Destination = new PdfDestination(page);
//Set the location.
destination.Destination.Location = new PointF(0, 800);
//Set zoom factor to 400 percentage.
destination.Destination.Zoom = 4;
//Add the named destination to the collection
doc.NamedDestinationCollection.Add(destination);
//Create a bookmark.
PdfBookmark bookmark = doc.Bookmarks.Add("TOC");
//Assign the named destination to the bookmark.
bookmark.NamedDestination = destination;
//Save the document.
doc.Save("Sample.pdf");
//Close the document.
doc.Close(true);'Create a new PDF document.
Dim doc As New PdfDocument()
'Add a page to the document.
Dim page As PdfPage = doc.Pages.Add()
'Create an instance for named destination.
Dim destination As New PdfNamedDestination("TOC")
destination.Destination = New PdfDestination(page)
'Set the location.
destination.Destination.Location = New PointF(0, 800)
'Set zoom factor to 400 percentage.
destination.Destination.Zoom = 4
'Add the named destination to the collection.
doc.NamedDestinationCollection.Add(destination)
'Create a bookmark.
Dim bookmark As PdfBookmark = doc.Bookmarks.Add("TOC")
'Assign the named destination to the bookmark.
bookmark.NamedDestination = destination
'Save the document.
doc.Save("Sample.pdf")
'Close the document.
doc.Close(True)You can download a complete working sample from GitHub.