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ppsei (PPS Extract Images) is a simple command line program, which tries to extract images from Microsoft PowerPoint documents (PPS/PPT).

Preview is a very simple Image Viewer LICENSE: GPL2 or later

Prison is a barcode API currently offering a nice Qt API to produce QR code and Data Matrix barcodes, and can easily be made support more.

NPlot is a free charting library for .NET. It boasts an elegant, flexible API and includes controls for Windows.Forms, ASP.NET and a class for creating Bitmaps.

Cartographic Projections library that performs projections to and from various cartographic coordinate systems.

`actdiag` generate activity-diagram image file from spec-text file. Features * Generate activity-diagram from dot like text (basic feature). * Multilingualization for node-label (utf-8 only).

`blockdiag` generate block-diagram image file from spec-text file. Features * Generate block-diagram from dot like text (basic feature). * Multilingualization for node-label (utf-8 only).

PyChart is a Python library for creating high quality Encapsulated Postscript, PDF, or PNG charts. It currently supports line plots, bar plots, range-fill plots, and pie charts. Because it is based on Python, you can make full use of Python's scripting power.

pyexiv2 is a python binding to exiv2, the C++ library for manipulation of EXIF and IPTC image metadata. It is a python module that allows your python scripts to read and write metadata (EXIF, IPTC, thumbnail) embedded in image files (JPEG, TIFF, ...). It is designed as a high level interface to the functionalities offered by exiv2 (and is built on top of it). Using python's built-in data types and standard modules, it provides easy manipulation of image metadata.

GvGen is a python class to generate dot files for further use with graphviz.