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How to change the PDF version using C# and VB.NET?

4 mins read

Syncfusion Essential PDF is a .NET PDF library used to create, read, and edit PDF documents. Using this library, you can change the PDF version using C# and VB.NET.

Steps to change the PDF version programmatically:

  1. Create a new C# console application project. Create a console application project in .NET PDF library
  2. Install the Syncfusion.Pdf.WinForms NuGet package as reference to your .NET Framework application from NuGet.org. NuGet package reference in .NET PDF library
  3. Include the following namespace in the Program.cs file.

C#

using Syncfusion.Pdf;
using Syncfusion.Pdf.Parsing;

 

VB.NET

Imports Syncfusion.Pdf
Imports Syncfusion.Pdf.Parsing

 

  1. Use the following code snippet to change the PDF version.

C#

//Load the PDF document
PdfLoadedDocument document = new PdfLoadedDocument("Input.pdf");
//Set the incremental update to false
document.FileStructure.IncrementalUpdate = false;
//Set the PDF version 
document.FileStructure.Version = PdfVersion.Version1_7;
//Save the document
document.Save("PDFVersion.pdf");
//Close the PDF document
document.Close(true);
//This will open the PDF file so, the result will be seen in default PDF viewer
Process.Start("PDFVersion.pdf");
 

 

VB.NET

'Load the PDF document
Dim document As New PdfLoadedDocument("Input.pdf")
'Set the incremental update to false
document.FileStructure.IncrementalUpdate = False
'Set the PDF version 
document.FileStructure.Version = PdfVersion.Version1_7
'Save the document
document.Save("PDFVersion.pdf")
'Close the PDF document
document.Close(True)
'This will open the PDF file so, the result will be seen in default PDF viewer
Process.Start("PDFVersion.pdf")

 

A complete working sample can be downloaded from PDFVersionSample.zip.

Take a moment to peruse the documentation, where you can find other options like adding document settings, printing PDF document, creating sections in a PDF, adding document actions, and features like PDF Form filling, extract text, images from PDF, and protect PDF documents with code examples.

Refer here to explore the rich set of Syncfusion Essential PDF features.

Note:

Starting with v16.2.0.x, if you reference Syncfusion assemblies from trial setup or from the NuGet feed, include a license key in your projects. Refer to link to learn about generating and registering Syncfusion license key in your application to use the components without trail message.

 

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