Portable Document Format (PDF) is a file format used to present documents in a manner independent of application software, hardware, and operating systems.

PDF File Format

Book Review – Developing with PDF By Leonard Rosenthol

Did you know that the second line of the PDF is a set of characters to make sure PDF files are treated as binary...
Mark Stephens
1 min read

Check if a PDF is valid using the HTML5…

Using the HTML5 File API to validate PDF Files Recently in my own time I have been familiarizing myself with the HTML5 File API....
Lyndon Armitage
5 min read

How to edit PDF files using Incremental Updates

Yesterday, Mark wrote about how wrong references tables can be. He’s also previously written about how to edit PDF files by adding a second...
Sam Howard
1 min read

PDF teasers – how would you handle this stack…

This article arose as a result of debugging a customer file which was not displaying properly. There are many PDF files out there which...
Mark Stephens
59 sec read

Understanding the PDF file Format – Multiple trailers on…

A PDF file consists of a ‘dump’ of PDF objects and a reference table defining where they are located in the PDF fille and...
Mark Stephens
1 min read