Author Archives: Brendan

Installing Java in Ubuntu

This is a beginner article, written from the viewpoint of a long term Windows User. Before you install JPedal or any other Java application in Linux, make sure that java is installed on your machine. Most newer Linux distributions come with Java already installed. To check the version of java installed, in a terminal window…

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Ubuntu for Windows users

For the record, I have been a long term Windows user. I owned a copy of Windows 1.0 (unfortunately I am that old). The Linux revolution during the early noughties failed to impress me. Sure it was free and did most things you expect from an OS, but you needed to be fairly committed to…

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Don’t blame the PDF file format

I see a lot of complaints about the PDF file format on various forums, moaning about it. They tend to focus mainly on 2 issues:- 1. The PDF file format is complicated. 2. Extraction, especially of text, is not always straight-forward. Both of these, I think, are essentially unfair. PDF arose out of Postscript and…

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Why we need to see your PDF files…

What makes writing a PDF parser especially interesting (ie complex) is that the specification is often ambiguous and that PDF is a very complex structure. To Display a PDF file requires the parser to correctly scan the PDF object data structure, to correctly decode and assemble all the data, and then parse the stream of…

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