
Resize an Animated GIF Image on a Mac Using Preview The keyboard shortcut for Save As… is Command Shift Option S. Save with a new name: Instead of undoing the size change, you can also save a copy: hold down the Option key while the File menu is open to reveal and use the Save As… command, which will let you save the image’s current state under a new name without changing the original. Restore the original: After uploading or using your image, you can restore the original resolution easily in Preview by pressing Command Z or selecting Edit | Undo Size Change from the menu. That is too large, so you enter 85 under Height. After entering 100 under Width:, Height: has changed to 150.

The image is currently 900 x 1348 pixels. If it exceeds your desired maximum, enter the maximum size under that dimension.Įxample: You want the image for your signature to be 100 pixels wide as a maximum and no more than 85 pixels high. Watch both: The other dimension will change automatically.

Supported file formats: See below for image file types you can resize with Mac Preview. Here’s how: To make sure the picture opens in Preview, click on the image with the right mouse button and select Open With | Preview from the context menu. To change the size of an image with the Preview application that comes with any Mac‘s macOS:
