: Photoshop - Eraser tool - how do you edit multiple layers at once? Is there anyway to use the Eraser tool on more then one layer at once? my question stems from a project I'm working on

@BetL875

Heckuva project you have there. Coffee stains? Oh, boy.

Here's Tip Number One: don't use the eraser tool; non-destructive editing will get you there a lot faster. The best practice for this kind of situation is to use a mask:


Put the scan on its own layer with a white solid layer beneath.
Create a layer mask for your scan layer.
Create a Levels adjustment layer (NOT a copy of the layer) above the scan and crank up the contrast so you can see what you're dealing with. At any point during your edit you can tweak this according to your needs.
Paint out the crapola using a Black brush on the Layer Mask (NOT the layer). If you overdo it somewhere, just press X to switch from Black to White and paint in back in. Press X again to revert to Black.


Any time you're not quite sure what you're looking at, you can toggle off the mask (Shift-Click on the mask icon), then toggle it back on.

When you're done, save out a tiff or jpeg copy. You can also add a small note saying "No pixels were harmed in the making of this copy."

Vote Up Vote Down

@Berumen635

You don't need to edit 2 layers at the same time. Instead, add a Levels adjustment layer () above it and just modify the original layer.

Vote Up Vote Down