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C# PDF Viewer, Reader Library
How to open, view, display, edit Adobe PDF file hyperlink (url) in c#.net, asp.net, wpf windows. Free Download


Guide C# Programmers to Insert a Hyperlink to Specified PDF Document Page in C# Using .NET PDF DLLs



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In this tutorial, you learn how to add, insert a web link to a PDF page programmatically using C#

How to add a web link to a PDF page programmatically using C#

  1. Download XDoc.PDF Web Link C# library
  2. Install C# library to insert a URL link to PDF page programmatically
  3. Step by Step Tutorial








  • A professional XDoc.PDF SDK for C# .NET project, able to edit hyperlink in adobePDF document
  • .NET components and library provide various PDF link edit functionalities in both Visual C# .NET WinForms and ASP.NET application
  • Free online C# class source code for editing PDF hyperlink in Visual Studio .NET framework project
  • Support .NET WinForms, ASP.NET MVC in IIS, ASP.NET Ajax, Azure cloud service, DNN (DotNetNuke), SharePoint
  • Empower to create clickable and active html links in .NET WinForms
  • Able to insert and delete PDF links
  • Able to embed link to specific PDF pages
  • Easy to put link into specified position of PDF text, image and PDF table
  • Link access to variety of objects, such as website, image, document, bookmark, PDF page number, flash, etc
  • Keep Microsoft Office Word, Excel and PowerPoint links in PDF document
  • Make PDF link open in a new window or tab
  • Enable users to copy and paste PDF link
  • Help to extract and search url in PDF file


RasterEdge PDF SDK for .NET offers C# users a variety of PDF file editing options, like options for editing PDF document hyperlink and navigation links. By using specific PDF editing APIs, C# users will be able to add and edit hyperlinks within the document with extreme ease. This online C# tutorial is mainly about how to edit PDF hyperlink by inserting and adding link to PDF document.







Add a link annotation to a PDF page using c#


You may use the following programming demo to add a hyperlink to input PDF document. 



String inputFilePath = Program.RootPath + "\\" + "1.pdf";
String outputFilePath = Program.RootPath + "\\" + "Output.pdf";

//  open a PDF file
PDFDocument doc = new PDFDocument(inputFilePath);
//  get the 1st page
PDFPage page = (PDFPage)doc.GetPage(0);

//  set a rectangle area start from Point (0, 0) with width 400, height 200 pixels (in 96 dpi)
RectangleF linkAnnotBoundary = new RectangleF(0, 0, 400, 200);
//  set URL value
String uri = @"http://www.google.com";

//  create the annotation
PDFAnnotLink annot = new PDFAnnotLink();
annot.SetBoundary(linkAnnotBoundary);
annot.Uri = uri;

//  add annotation to the page
page.AddPDFAnnot(annot);

//  save to a new file
doc.Save(outputFilePath);








Common Asked Questions

How do I create a hyperlink for a PDF?

You can create, insert a web link in PDF document using Acrobar Pro, or other free or paid PDF editor software. Using Acrobat pro, you can insert a link through the menu Tools > Edit PDF > Link > Add or Edit.

Using RasterEdge XDoc.PDF C# library, you can add a link by defining a rectangle area inside the PDF page, and inputting the link destination in your C# ASP.NET Core, MVC web application.

How to add hyperlink to PDF without Acrobat?

You can use Microsoft Office Word to add links to PDF document. You can also choose other online free tools to insert links to PDF file. If you want to build a desktop or web tool by yourself, you can quickly enable inserting links to PDF pages using C# PDF library from RasterEdge.

Why is my PDF not clickable?

If a PDF link is not working, you need check whether the link destination setting is correct. You can delete the existing broken link and insert a new link on the same place using Acrobat or Microsoft Word in PDF document. Removing an existing link and creating a new link are easy tasks using C# PDF library. You can quickly implement them in your C#.NET projects.

How to save a PDF and keep the hyperlinks?

If you are creating and adding hyperlinks to PDF document using Microsoft Word application, you can insert the links into Word document, and save the modified document, and convert to a PDF. The created PDF document will keep the inserted hyperlinks. Using C# PDF text editor library, you can directly create and insert a hyperlink with web destination on the specified area in a PDF page in C# class.

How to find hidden hyperlinks in PDF?

Open the PDF document using Adobe Acrobat. Go to menu Tools, click "Edit PDF". On The top toolbar, click "Link", click menu "View Web Links...". You will find all displayed and hidden hyperlinks in the PDF document. Using C# PDF library, you cannot only get all web links from a whole PDF document, you can also get all hyperlinks from a target PDF page in your C# ASP.NET MVC web apps.

Why do hyperlinks in Word become inactive when converted to PDF?

When you want to keep the hyperlinks during saving Microsoft Word (.docx) document in PDF, you'd better save the PDF as "best for electronic distribution", instead of "best for printing". When you are converting Word document to PDF file using XDoc.PDF and Word C# library, the library will automatically keep all the hyperlinks in the converted PDF document.

How to compress a PDF without losing hyperlinks?

When you want to optimize or reduce the size of a PDF document using Acrobat, you need config the option to keep the hyperlinks inside the PDF document. Otherwise the compression may cause the links to break. Using C# PDF library to compress a PDF document, you can custimze the optimization options to keep the hyperlinks in your C# application.