ASP.NET PDF Text Edit Web Control
How to open, view, edit PDF file text content using C#, ASP.NET MVC, Azure


C# Tutorial for How to Edit PDF Text Content in ASP.NET Program Using C#.NET RasterEdge HTML5 PDF Editor Library











In this tutorial, you learn how to edit PDF text content in EdgePDF ASP.NET PDF Viewer web app.

  • Modify, replace, remove text from PDF in web browser
  • Change existing PDF text font style, size, color online
  • Add new text content to PDF file

How to view, edit PDF file text content through web browser in asp.net web app

























  • Best Visual C# .NET HTML5 PDF Editor control for editing PDF text in ASP.NET project
  • An advanced tool to help C# users to edit PDF text in ASPX webpage and ASP.NET WebForms application
  • Support ASP.NET MVC, IIS, ASP.NET Ajax, Azure cloud service, DNN (DotNetNuke) and SharePoint
  • Utility ASP.NET PDF tool offers multiple features for PDF text editing in browsers
  • Able to bold and italicize selected text on PDF doument
  • Able to underline and strikethrough PDF text
  • Able to highlight PDF text or change PDF text color
  • Support to change PDF text font size
  • Able to copy, cut, paste and delete selected PDF text content











Edit PDF text - change, replace, or delete PDF text in ASP.NET Online



When you edit text, the text in the paragraph or line reflows within its text box to accommodate the changes. Each text box is independent, and inserting text in one text block does not push down an adjacent text box or reflow to the next page.



  1. In toolbar "Content Edit", choose command "Edit Content" from "Tools" section. Now you can edit pdf document text and images.



  2. Select the text you want to edit, or mouse move over some text. A blue text-box will be displayed.



  3. You can do the following text edit actions
    • Type new text to replace the selected text, or press Delete to remove it.
    • Select a font, font size, font color or other formatting options in the toolbar "Content Edit" > "Text Edit" section.








Format PDF text - Change pdf text font, size, color in ASP.NET Online



You can use the commands on the toolbar "Content Edit" to format your selected text.











Add pdf new text in ASP.NET Online



You can add or insert new text into a PDF using any of the fonts installed on the server system.





  1. Go to toolbar "Content Edit" > "Text Edit", choose command "Add Text"
  2. Click the area in the pdf document, where you want to insert the text
  3. Type the text
  4. Format the text