Mark Stephens

  https://www.idrsolutions.com Mark founded the company and has worked with Java and PDF since 1997. The original creator of the core code, he is also a NetBeans enthusiast who enjoys speaking at conferences and reading. He holds an Athletics Blue and an MA in Mediaeval History from St. Andrews University.

   



194 Stories by Mark Stephens

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

What Java Developers need to know about PDF Files?

PDF stands for portable document format and is the world’s most popular file format. So it’s likely to be one that Java Developers need...
2 min read

PDF Text extraction – Why can I not extract text from a PDF file?

Every so often people send us files and ask why we cannot extract the text from them – I mean we can view the...
1 min read