Portable Document Format (PDF) is a file format used to present documents in a manner independent of application software, hardware, and operating systems.

PDF File Format

Understanding the PDF file format – Embedded CMAP tables

Every glyf inside a PDF file can have a display value and a different extraction value. This is useful because often you need to...
Mark Stephens
2 min read

Understanding the PDF file Format – ActualText

Text is defined in the PDF file format as a display value (normally what you see onscreen) and an extraction value. It is useful...
Mark Stephens
40 sec read

Understanding the PDF file Format – Named locations

The PDF file format allows you to specify Destination which you can goto by clicking a link or upon certain actions. There locations can...
Mark Stephens
39 sec read

3 reasons why PDF commands inside a PDF matter

A PDF file consists of instructions to draw the page onto a screen. This is normally done by a computer program so it places...
Mark Stephens
1 min read

A Suggestion to the Prawn development team on making…

One of my favourite features of the PDF file format is its flexibility. You can do just about anything with it. However, a drawback...
Mark Stephens
1 min read