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

Extracting Maths formulae in PDF files

Maths formulae look really good in PDF files but how easy are they to extract? They are actually quite an extreme example of the...
Mark Stephens
48 sec read

Why do I need the PDF password to open…

Many people have PDF files which are password protected but for which they no longer have the password, often for perfectly innocent reasons. So...
Mark Stephens
50 sec read

Understanding the PDF File format series

We have been publishing a series of articles entitled Understanding the PDF file format. In each article we try to take a specific PDF...
Mark Stephens
11 sec read