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

Interesting PDF bugs – Missing image data

After a brief absence, we are a back with a bang! Today’s PDF is a very nasty PDF allegedly created with these tools Creator...
Mark Stephens
56 sec read

PDF to HTML5 conversion – correctly mapping the embedded…

One of the challenges when using a converted font from a PDF file for HTML5 display is to ensure that the correct glyf value...
Mark Stephens
48 sec read

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

PDF to HTML5 conversion – duplicate font names

When you convert PDF to HTML5, you can have a potential problem of duplicate font names. In a PDF file, you can embed lots...
Mark Stephens
43 sec read

Interesting PDF bugs – Missing image data

I have been looking at a customer file which illustrates one of my least favourite features of the PDF file spec – the need...
Mark Stephens
1 min read