Most computer users will already know cut, paste and select all, but if you are a beginner learn these first you will use them in almost any aplication
Ctrl C - copy
Ctrl V - paste
Ctrl A - select all, this is useful for selecting all files in a folder or selecting the whole image area in a document
Ctrl + - zoom in
Ctrl - - zoom out
Ctrl 0 - fit to window
Ctrl Alt Z - Most programs allow you to press Ctrl + Z multiple times for multiple Undo’s, but with PS you need to hold down the Alt key otherwise you’ll keep undoing then re-doing!
Spacebar
To select the hand (move) tool just hit the spacebar
Ctrl + Tab
To switch quickly between windows, useful when having multipal documents open
Ctrl + Shift + N - with dialog
Ctrl + Shift + Alt + N - without dialog
Ctrl + J - without dialog
Ctrl + Alt + J - with dialog
You can duplicate an entire layer, or, if you have a selection, the selection will be duplicated to it’s own layer
Ctrl + F - run filter again
Ctrl + Alt + F - run filter again, with dialog
Ctrl + Shift + F - fade filter
If something goes wrong, you can quickly undo, then go back and try again without having to go through the hassle of moving your cursor. Or, if your filter effect is too intense, you can fade it down
Photoshop allows you to custom create your own Keyboard shortcuts to suit your needs, press Ctrl + Alt + Shift + K or go to Edit > Keyboard Shortcuts.
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