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PDF stack overflow and underflow

The PDF format makes extensive use of stacks. A stack is like a pile of books. If you add an item it goes on...
Mark Stephens
1 min read

How are carriage returns, spaces and other gaps defined…

One of the biggest issues within PDF files we find is  the use of carriage returns, spaces and line feeds as gaps with the...
Mark Stephens
1 min read

What are subsetted fonts in PDF files?

What are subsetted fonts? Subsetted fonts are fonts which  only include certain values. If you look at the fonts on your Computer you will...
Mark Stephens
2 min read

Problems caused by Arial font in PDF files

The Arial Font Arial is a very popular font with a contemporary sans serif design. The font family is also on the font families...
Mark Stephens
1 min read

What are ICCBased Colorspaces in PDF files?

I introduced how PDF Color works in a previous article. There are lots of different types of Colorspaces to suit all occasions. One of...
Mark Stephens
49 sec read