ImageMagick

ImageMagick^® is a software suite to create, edit, and compose bitmap images. It can read, convert and write images in a variety of formats (over 100) including DPX, EXR, GIF, JPEG, JPEG-2000, PDF, PhotoCD, PNG, Postscript, SVG, and TIFF. Use ImageMagick to translate, flip, mirror, rotate, scale, shear and transform images, adjust image colors, apply various special effects, or draw text, lines, polygons, ellipses and Bézier curves.

The functionality of ImageMagick is typically utilized from the command line or you can use the features from programs written in your favorite programming language. Choose from these interfaces: G2F (Ada), MagickCore (C), MagickWand (C), ChMagick (Ch), ImageMagickObjectMagick++ (C++), JMagick (Java), L-Magick (Lisp), NMagick (Neko/haXe), MagickNet (.NET), PascalMagick (Pascal), PerlMagick (Perl), MagickWand for PHP (PHP), IMagick (PHP), PythonMagick (Python), RMagick (Ruby), or TclMagick (Tcl/TK). With a language interface, use ImageMagick to modify or create images dynamically and automagically. (COM+),

ImageMagick is free software delivered as a ready-to-run binary distribution or as source code that you may freely use, copy, modify, and distribute. Its license is compatible with the GPL. It runs on all major operating systems.

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GimPhoto - free Photoshop alternative for photo and image editor

GimPhoto is GIMP modification with new menu layout, great selection of plugins, and many additional resources for more professional look and feel as digital photo retouching and image editing application package.

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sK1

sK1 is an open-source illustration program that can substitute professional proprietary software like Corel Draw or Adobe Illustrator*. Currently Linux is our main development platform, but porting on Win32 and MacOS X desktops has been scheduled. sK1 supports professional publishing features, such as CMYK color, separations, ICC color management and press-ready PDF output.

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VariCAD Viewer 2009

VariCAD is a 3D/2D CAD system for mechanical engineering. In addition to standard tools for 3D modeling and 2D drafting, the CAD system provides support for parameters and geometric constraints, tools for shells, pipelines, sheet metal unbending and crash tests, assembly support, libraries of standard mechanical parts (ANSI, DIN) and symbols, mechanical part calculations and tools for working with bills of materials (BOM) and title blocks. VariCAD supports STEP, STL, IGES, DWG and DXF file formats.

The comprehensive CAD software enables designers to quickly create, evaluate, and modify their models. It is compact, fast, easy to use, and provides everything one needs for mechanical design. The CAD system is sold "fully loaded", including all features and functions, for one affordable price.

Download : http://www.varicad.com/en/home/products/download/