Save PDF file to Google Drive
13 Dec 20234 minutes to read
To save a PDF file to Google Drive, you can follow the steps below
Step 1: Set up Google Drive API
You must set up a project in the Google Developers Console and enable the Google Drive API. Obtain the necessary credentials to access the API. For more information, view the official link.
Step 2: Create a simple console application
Step 3: Install the Syncfusion.Pdf.Net.Core and Google.Apis.Drive.v3 NuGet packages as a reference to your project from the NuGet.org.
Step 4: Include the following namespaces in the Program.cs file.
using Syncfusion.Pdf;
using Syncfusion.Pdf.Graphics;
using Google.Apis.Auth.OAuth2;
using Google.Apis.Drive.v3;
using Google.Apis.Services;
using Google.Apis.Util.Store;
using File = Google.Apis.Drive.v3.Data.File;
using Syncfusion.Drawing;
Step 5: Add the below code example to create a simple PDF and save in google drive.
// Create a new PDF document
PdfDocument document = new PdfDocument();
// Add a new page to the document
PdfPage page = document.Pages.Add();
// Get graphics object for the page
PdfGraphics graphics = page.Graphics;
// Draw text on the page
graphics.DrawString("Hello, World!", new PdfStandardFont(PdfFontFamily.Helvetica, 12), PdfBrushes.Black, new PointF(10, 10));
// Create a memory stream to save the PDF document
MemoryStream stream = new MemoryStream();
// Save the document to the memory stream
document.Save(stream);
// Close the document
document.Close(true);
// Load Google Drive API credentials from a file
UserCredential credential;
string[] Scopes = { DriveService.Scope.Drive };
string ApplicationName = "YourAppName";
using (var stream1 = new FileStream("credentials.json", FileMode.Open, FileAccess.Read))//Replace with your actual credentials.json
{
string credPath = "token.json";
// Authorize the Google Drive API access
credential = GoogleWebAuthorizationBroker.AuthorizeAsync(
GoogleClientSecrets.Load(stream1).Secrets,
Scopes,
"user",
CancellationToken.None,
new FileDataStore(credPath, true)).Result;
}
// Create a new instance of Google Drive service
var service = new DriveService(new BaseClientService.Initializer()
{
HttpClientInitializer = credential,
ApplicationName = ApplicationName,
});
// Create metadata for the file to be uploaded
var fileMetadata = new File()
{
Name = "Sample1.pdf", // Name of the file in Google Drive
MimeType = "application/pdf",
};
FilesResource.CreateMediaUpload request;
// Create a memory stream from the PDF document
using (var fs = new MemoryStream(stream.ToArray()))
{
// Create an upload request for Google Drive
request = service.Files.Create(fileMetadata, fs, "application/pdf");
// Upload the file
request.Upload();
}
You can download a complete working sample from GitHub.