193 Stories by Mark Stephens
In theory the PDF file format is specified in detail and is very precise. In practice, you meet alsorts of ‘interesting problems’ – the... 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... What are PDF Xref tables? Xref tables are part of the original PDF file specification and one of the features which gives the PDF... 