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  • For Windows you have Paint.NET.
  • For Linux you have Kolourpaint.

What would be the equivalent on OS X?






  1. Choose Tools > Rectangular Selection.
  2. Select the whole picture.
  3. Copy the selection (choose Edit > Copy).
  4. Choose Tools > Adjust Size.
  5. Turn off the lock for proportional changes.
  6. Select pixels as your unit.
  7. Double the width of your picture.


  4. Save your new picture. Done.


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    As of 2018: I would just go with standard GIMP. It's had Mac-native window manager support for a while now, and it's definitely active—a whole bunch of new stuff is coming out in v2.10! – SilverWolf Jan 19 '18 at 18:43
  • yes things certainly have changed a lot since I wrote my answer. Not only has GIMP become more Mac friendly in deployment, but I've learned that it has "single window" mode to make it even more friendly – jhocking Jan 19 '18 at 19:24


  • Maxim, Paint.Net also uses the .Net framework, which is including on all Windows machines, but still conceptually similar to Mono which Pinta requires. I just started using Pinta, and it is a relief to finally find something equivalent to Paint.Net, which I used for years before moving to Mac. – Dave Aug 24 '15 at 18:33




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    Welcome to AskDifferent! Can you please add links (and maybe a short description/recommendation) for the mentioned applications to make the answer useful without relying on Google? – nohillside Mar 5 '13 at 10:35
  • I also had not realized Preview could edit images. But you can do most of basic image editing: crop, rotate, cut, paste, color enhancement, markup, etc. – wisbucky Feb 10 '16 at 23:48

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