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

How Are Images Stored in a PDF file?

How are images stored in a PDF file? When I was learning the PDF file format, I found Images could be quite a complex...
Mark Stephens
1 min read

PDF mystery – what is the correct value for…

I came across an interesting issue with PDF Text fields while debugging a file this week. We were sent a 2 page document created...
Chris Wade
1 min read

Understanding PDF text objects

Understanding PDF Text Objects Inside a PDF is a Postscript stream of commands which describe the page – they draw the text, images or...
Mark Stephens
1 min read

How to calculate PDF page size in inches or…

The size of a PDF is generally defined by the CropBox or MediaBox setting for each page. This is the number of pixels. This...
Mark Stephens
36 sec read

How to handle corrupt PDF files

There are several ways to corrupt (or break) a PDF file:- Common issues with corrupted PDF files Broken xref table Corrupted COS objects Content...
Sam Howard
58 sec read