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Understanding the PDF file format – How Are Images…

How are images stored? When I was learning the PDF file format, I found Images could be quite a complex topic in PDF so...
Mark Stephens
1 min read

Understanding the PDF file format – PDF password protection

One of the many reasons people do not put their content online is worries about security – they worry that the material can be...
Mark Stephens
1 min read

PDF mystery – what is the correct value for…

I came across an interesting issue with PDF Text fields while debugging a file this week. We were sent a 2 page document created...
Chris Wade
1 min read

There is more than one PDF file specification

One of the really annoying thing about working with PDF is that there is actually more than one PDF file specification. First of all,...
Mark Stephens
1 min read

Understanding the PDF file format – Standard font information

One of the reasons that the PDF file format is so popular is that it embeds a large amount of font information in the...
Mark Stephens
1 min read