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Talk: Xpdf and Selling Open Source Software

Xpdf and Selling Open Source Software
Derek Noonberg


I've been working on Xpdf since 1995. I'll start with an overview of
Xpdf's architecture and a brief history of the project. The PDF format
has some interesting characteristics, and working with it has raised
some interesting issues. Finally, I'll talk about open source business
models in general, and Glyph & Cog's model more specifically.


Derek is the author of xpdf and runs a company that sells GPL license
exceptions to that software. Xpdf is a PDF1.4 compliant viewer/decoder
and is therefore JBIG2 capable. Derek's homepage is

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