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PDF::Core is a pure Ruby library to render PDF documents. It supports several PDF features, such as among others: * low-level annotation * istream objects and stream filters * NameTree * object repository * object serialization * indirect objects * page geometries It is used internally by Prawn (provided in the rubygems-prawn package), a Ruby PDF generation library.

The PDF::Reader library implements a PDF parser conforming as much as possible to the PDF specification from Adobe

This library provides the ability to create PDF documents using only native Ruby libraries. There are several demo programs available in the demo/ directory. The canonical documentation for PDF::Writer is "manual.pdf", which can be generated using bin/techbook (just "techbook" for RubyGem users) and the manual file "manual.pwd".

Rubygem-prawn-core is the core of Rubygem-prawn.

An extension to Prawn that provides flexible table support, that means be able to create tables with rowspan and colspan attributes for each cell

rubygem-prawn-format is an extension of Prawn that allows inline formatting.

Prawn::Graph aims to add this functionality to Prawn by using the native PDF drawing tools Prawn exposes and a friendly single-method call to draw the graph. The graphs and the values plotted and drawn are all relatively sized within the bounds of the width and height you have set and should scale pretty well to any size of value. Of course, if things do end up looking too squashed, you can always just make your graph bigger. At the moment, only Bar and Line charts are implemented, with others coming soon. Both charts work in mostly the same way.

A small extension to prawn that simplifies embedding JavaScript in your PDF files

rubygem-prawn-layout is an extension to Prawn that provides table support and other layout.

rubygem-prawn-security is an extension of Prawn.