203 Stories by Mark Stephens
Text is defined in PDF files by a Font object and a set of TJ commands. So you will see something like this in... This article is all about color in PDF images, and exactly what the depth of an image means in practice. All PDF images will... Introduction Indexed colorspaces are a very useful way of reducing the amount of memory and space needed when they only have a certain number... There was an interesting question posted on stack overflow asking ‘Is JPedal free?’ It is a intriguing question so let us unpack it and... Introduction Form XObjects (not be confused with forms which are buttons, checkboxes, buttons, etc) are an advanced feature of the PDF file format. They... Introduction Like many of my best articles this posting was inspired by a customer question. We try to answer all questions and often use... 