Mark Stephens

  https://www.idrsolutions.com Mark has been working with Java and PDF since 1999 and is a big NetBeans fan. He enjoys speaking at conferences. He has an MA in Medieval History and a passion for reading.

   



191 Stories by Mark Stephens

3 steps to finding a range of numeric values on a PDF page

Over the holiday I read an interesting question asking how to find numbers within a specific range on a PDF page. This set me...
54 sec read

Why is my PDF Producer showing up in Chinese (or all the adventure of the wrongly encoded textstream)

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

7 ways to navigate around a PDF file

Update: You can see all these modes in action on Youtube. A PDF file is a multipage document which can contain many pages. Unlike...
1 min read