204 Stories by Mark Stephens
Access to PDF files can be secured so that not just anyone can open them. This is achieved by encryption – the bytes in... The PDF Mask features offer a whole set of functionality to allow complicated image drawing to happen. Rather than just sticking an image on... I wanted to investigate the memory usage of our Java application to see how much memory was being used for a task – in... When you are viewing a PDF file, you may well notice that (like a web page) there are blue clickable links. These are defined... TL;DR: A PDF Xref table is an internal “map” of byte offsets that tells a reader exactly where to find specific objects (like fonts... The PDF format makes extensive use of stacks. A stack is like a pile of books. If you add an item it goes on... 