The official W3C overview of the Scalable Vector Graphics (SVG) format is at http://www.w3.org/Graphics/SVG/
If you need a SVG browser viewer, we suggest you The Adobe® SVG Viewer (plug-in)

Portable Document Format Reference Manual Version 1.4 http://partners.adobe.com/asn/developer/acrosdk/docs/filefmtspecs/PDFReference.pdf

A list of PDF books we suggest you:

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