194 Stories by Mark Stephens
Overview It is actually possible to extract some raw images from the PDF file. In general, images do not exist inside a PDF file... 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... 