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PoDoFo is a library to work with the PDF file format. The name comes from the first letter of PDF (Portable Document Format). A few tools to work with PDF files are already included in the PoDoFo package.

Impressive is a program that displays PDF presentation slides with style. Smooth alpha-blended slide transitions are provided for the sake of eye candy, but in addition to this, Impressive offers some unique tools that are very useful for presentations.

JpGraph is an OO class library for PHP. JpGraph makes it easy to draw both "quick and dirty" graphs with a minimum of code and complex professional looking graphs which requires a very fine grain of control. The library assigns context sensitive default values for most parameters which helps minimize the learning curve.

potrace is a Peter Selinger's GPLed utility for tracing bitmaps - converting them into smooth, scalable images. It accepts as input a bitmap B/W images (PBM, PGM, PPM and BMP formats), and returns encapsulated PostScript (EPS) as the default output. Other output format are available: PS, SVG, Xfig, PGM, PDF and experimental GimpPath. You can create scalable images from scans, such as logos, hand taken notes, etc. The resulting smooth images can then be rendered at any resolution.

Precision Raster Image Convolution Engine. PRICE can open several image file formats and apply high-quality filters and other enhancements.

projectM is an LGPL'ed reimplementation of Milkdrop under OpenGL. All projectM requires is a video card with 3D acceleration and your favorite music.

pstoedit converts Postscript(TM) and PDF files to other vector graphic formats so that they can be edited graphically.

This set of C (Cython) extensions provides acceleration of common operations for slow points in PyOpenGL 3.x.

PyOpenGL is an interface between the Python programming language and the OpenGL library (and related libraries). The package provides interfaces to: - The OpenGL library itself, which is a three-dimensional graphical rendering interface. For more information, visit http://www.opengl.org. - The GLU library which provides access to routines for doing quadrics, tesselation etc. - The GLUT (GL UTilitity) library from Mark Kilgard, which provides a windowing environment. - The Togl (Tk/OpenGL) widget from Brian Paul and Ben Benderson (an alternative to GLUT which interfaces to Tk). The Python bindings offer some value-added tools in addition to the standard API, including support for fast processing of arrays of coordinates, trackball support, etc.

PyX is a Python package for the creation of encapsulated PostScript figures. It provides both an abstraction of PostScript and a TeX/LaTeX interface. Complex tasks like 2d and 3d plots in publication-ready quality are built out of these primitives. Features * PostScript output for device independent, free scalable figures * seamless TeX/LaTeX integration * full access to PostScript features like paths, linestyles, fill patterns, transformations, clipping, etc. * advanced geometric operations on paths like intersections, transformations, splitting, etc. * sophisticated graph generation: modular design, pluggable axes, axes partitioning based on rational number arithmetics, flexible graph styles, etc.