Paintbrush

Paintbrush is a simple paint program for Mac OS X, reminiscent of Microsoft Paint and Apple’s own now-defunct MacPaint. It provides users with a means to make simple images quickly, something which has been noticeably absent from the Mac for years.
When Apple released the original Macintosh in 1984, they included two applications: MacWrite and MacPaint. Twenty-five years later, every Mac still includes a basic text editor in TextEdit, but a simple paint program is a thing of the past.
Paintbrush can open and save to most major image formats, including BMP, PNG, JPEG, TIFF, and GIF. Full support for transparency is available for image formats which support an alpha channel (currently PNGs and GIFs). You can also paste images copied from many common Mac applications, including Microsoft Office and Apple iWork.
Features are
  • An updated and streamlined new UI
  • Marching ants for the selection tool
  • A completely rewritten Text tool for pinpoint-accurate insertion
  • Four all-new tools: Airbrush, Rounded Rectangle, Eyedropper, and Zoom
  • Image resizing, canvas resizing, and cropping
  • Countless bug fixes and efficiency improvements
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