Comments by Mauro Gagna (Top 6 by date)

Reason for my vote of 1 \n It doesn't look like an original work.
The same code is http://madskristensen.net/post/httpmodule-for-query-string-encryption , but this is from 2007.

I don't have any PDF file with a textbox inside to try it. Can you upload an example file to any file shareing website and put the link to download it. If you can give me an example file I can tell you how to read it.

You can search the text what you want by its content (for example if you know the row start with "Name:") or for its position (if you know where the text starts or in where area is).

If you can provide some info about your case, and specially if you can share a PDF file for example, we can give you some code for help to do it.

You can use ITextSharp to do that. If you can upload an example PDF file we can help you more easily.