How to replace text in a PDF with C#?

Question

I saw a lot of solutions in here but none are clear or good answers.

Here is my simple question, hoping with a straight answer.

I have a PDF file (a template) which is created having text something like this:

{FIRSTNAME} {LASTNAME} {ADDRESS} {PHONENUMBER}

is it possible to have C# code that replace these templates with a text of my choice?

No fields, no other complex stuff.

Is there any Open source library helping me achieve that?

Answer 1

This thread is dead, however I'm posting my solution for other lost souls that might face this problem in the future. Unfortunately my company doesn't allow posting code online so I'll describe the solution :).

So basically what you have to do is use PdfSharp and modify this sample to replace text in stream, but you must take into account that text may be split into many parentheses (convert stream to string to see what the format is).

Then, with code similar to this sample traverse through source pdf page by page and modify current page by searching for PdfContent items inside PdfReference items and replacing text in content's stream.