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Inkscape supports many advanced SVG features (markers, clones, alpha blending, etc.) and great care is taken in designing a streamlined interface. It is very easy to edit nodes, perform complex path operations, trace bitmaps and much more. We also aim to maintain a thriving user and developer community by using open, community-oriented development.
Link to download Inkscape here
Gimp
GIMP is an acronym for GNU Image Manipulation Program. It is a freely distributed program for such tasks as photo retouching, image composition and image authoring.
It has many capabilities. It can be used as a simple paint program, an expert quality photo retouching program, an online batch processing system, a mass production image renderer, an image format converter, etc.
GIMP is expandable and extensible. It is designed to be augmented with plug-ins and extensions to do just about anything. The advanced scripting interface allows everything from the simplest task to the most complex image manipulation procedures to be easily scripted.
What can you do with Gimp
- Painting
- Full suite of painting tools including Brush, Pencil, Airbrush, Clone, etc.
- Sub-pixel sampling for all paint tools for high quality anti-aliasing
- Extremely powerful gradient editor and blend tool
- Supports custom brushes and patterns
- System
- Tile based memory management so image size is limited only by available disk space
- Virtually unlimited number of images open at one time
- Advanced Manipulation
- Full alpha channel support
- Layers and channels
- Multiple Undo/Redo (limited only by diskspace)
- Editable text layers
- Transformation tools including rotate, scale, shear and flip
- Selection tools including rectangle, rounded rectangle, ellipse, free, fuzzy
- Foreground extraction tool
- Advanced path tool doing bezier and polygonal selections.
- Transformable paths, transformable selections.
- Quickmask to paint a selection.
- Extensible
- A Procedural Database for calling internal GIMP functions from external programs as in Script-fu
- Advanced scripting capabilities (Scheme, Python, Perl)
- Plug-ins which allow for the easy addition of new file formats and new effect filters
- Over 100 plug-ins already available
- Animation
- Load and save animations in a convenient frame-as-layer format
- MNG support
- Frame Navigator (in GAP, the GIMP Animation Package)
- Onion Skin (in GAP, the GIMP Animation Package)
- Bluebox (in GAP, the GIMP Animation Package)
- File Handling
- File formats supported include bmp, gif, jpeg, mng, pcx, pdf, png, ps, psd, svg, tiff, tga, xpm, and many others
- Load, display, convert, save to many file formats
- SVG path import/export
- Much, much more!
Link to Download Gimp here
The best till last.
Paint.NET is a free image and photo manipulation application designed to be used on computers that run Windows. Paint.NET supports layers, unlimited undo, special effects, and a wide variety of useful and powerful tools. It started development as an undergraduate college senior design project mentored by Microsoft, and is currently being maintained by some of the alumni that originally worked on it. Originally intended as a free replacement for the MS Paint software that comes with Windows, it has grown into a powerful yet simple tool for photo and image editing.
Some key features of Paint.NET are:
Simple, intuitive user interface
Every feature and user interface element has been designed to be immediately intuitive and easily learned without assistance. Paint.NET is also designed to be immediately familiar to users of MS Paint and Adobe Photoshop.Layers
Layers allow you to compose one complete image from a stack of other images that are blended together.Unlimited History
Every action you perform on an image is recorded in the History window. The number of actions you can store in the History Window is only limited by available disk space and memory.Support for many popular file formats
The following file formats are supported: PNG, JPEG, BMP, GIF, TGA, DDS, and TIFF. The native Paint.NET image type is PDN, which preserves the layer structure.Effects and Adjustments
You can apply many special effects and adjustments to your image.Full Support for Dual- and Quad-Core CPU’s, and 64-bit
Paint.NET is fully optimized for the latest in processor technology, enabling dramatic performance improvements when working with large or multiple images.Enhanced for Windows 7
Paint.NET v3.5 has been enhanced for the latest Windows release. Jump List support provides quick access to the list of recent images, and the user interface has been enhanced to take advantage of Aero and Glass. The font manager for the Text tool has been rewritten to use the new DirectWrite component, which greatly improves quality and performance.Extensibility
Paint.NET supports plug-ins that add new effects, adjustments, and file format support.Free
Paint.NET is provided for no cost with generous licensing terms. If you choose, you can support continued development of Paint.NET with a donation.Link here Paint .net
