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

PDF

What are Hyperlinks in PDF files?

Hyperlinks are external, cliackable links which appear on web pages and other documents and allow you to go web pages or download files. PDF...
Mark Stephens
1 min read

What is PDF form flattening?

PDF files can include interactive forms – radio buttons, checkboxes, text boxes, lists, etc. There are interactive widgets – the user can click on...
Mark Stephens
40 sec read

Why is my PDF Producer showing up in Chinese…

I was recently sent a PDF file where some of the metadata appeared to be wrong. In particular, the PRODUCER field was appearing in...
Mark Stephens
1 min read

How to calculate PDF image dpi

How to calculate PDF Image dpi Most elements of a PDF file are device independent Vector graphics. This means that they will always appear...
Mark Stephens
1 min read

Why is white a special color in PDF files?

White is a special color in the PDF file format. This is because of the way different colours work in the PDF file format....
Mark Stephens
1 min read