Extract text from pdf using zlib

Question

I am using that function to find a text in the pdf file and replace that text with another text. The problem is when I make inflate and then change the text and deflate, in the

Answer 1

i think you have to read about how the text is stored inside a PDF file,

here is a link to spec http://www.adobe.com/devnet/pdf/pdf_reference.html

section 9 Text is the key to understanding.