How to Crop a Picture Using Paintbrush on a Mac

Paintbrush is a free image editing tool for Mac OS X. It's comparable to Microsoft Paint on Windows systems, and is an easier, lighter solution for users who want a simple photo or picture editing program. One of the most common uses for a photo editor is cropping, a task that is simple but not obvious with Paintbrush's nonstandard user interface.

...
Use Paintbrush to edit and crop photos on your Mac.

Step

Click the Paintbrush icon in your Dock to launch the program.

Step

Click "File," then "Open." Navigate to a photo you want to crop. Click the photo, then click "Open."

Step

Click "Image," then "Canvas Size." Use the drop-down menus to select either pixel or percentage-based cropping. Enter a value for the width and height. Click "OK."

Step

Click "File," then "Save as." Choose a location, name and format, then click "Save."