> For the complete documentation index, see [llms.txt](https://docs.realmacsoftware.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.realmacsoftware.com/squash/quick-guide/keyboard-shortcuts.md).

# Keyboard Shortcuts

Use these shortcuts to import, preview, compress and export images in Squash 4.

| Shortcut                       | Action                                                          |
| ------------------------------ | --------------------------------------------------------------- |
| Command-O                      | Import Images…                                                  |
| Option while importing         | Reverse the Replace previous images preference for that import. |
| Command-Z after a Replace drop | Undo the replace and restore the previous batch.                |
| Command-S                      | Squash: calculate compressed sizes for the batch.               |
| Command-E                      | Export All Images.                                              |
| Command-Shift-E                | Export Selected Image As…                                       |
| Delete                         | Remove the selected images from the batch.                      |
| Command-Delete                 | Remove All Images, after confirming.                            |
| Command-A                      | Select all images when the image list has focus.                |
| Return                         | In a sidebar text field, commit the edit.                       |
| Command-+ or Command-=         | Zoom in on the preview.                                         |
| Command-Minus                  | Zoom out of the preview.                                        |
| Command-0                      | Show the preview at actual size.                                |
| Command-9                      | Zoom the preview to fit.                                        |
| Option-scroll                  | Zoom the preview around the pointer.                            |
| Option-click the rotate button | Rotate the image right instead of left.                         |
| Space-drag                     | Pan the zoomed preview.                                         |
| Arrow keys                     | Move to the previous or next image when the list has focus.     |
| Shift-arrow                    | Extend the image selection.                                     |
| Command-Shift-C                | Copy Original.                                                  |
| Command-Option-C               | Copy Squashed.                                                  |
| Command-,                      | Open Settings.                                                  |

On macOS versions that show **Add Images…** or **Replace Images…** as a separate File menu item, **Command-Option-O** performs that alternate import. On newer versions, hold Option to reveal the alternate Import command.

Copy and export commands act on the current image or whole batch as indicated by their menu labels. Selecting several images does not change **Command-E** into a selected-images-only export.


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