Deleted the wrong thing by accident, dragged an image to the wrong spot — small slips like these are common, and you don't need to reopen the file and start over. Undo instantly reverts to how things were before that action.

How to undo

Two equivalent ways:

Can you undo multiple steps in a row?

Yes. Each press of undo (or click of the button) steps back one action — press it repeatedly to keep stepping back, all the way to how the file looked when you first opened it.

What kinds of actions can be undone

Adding text, highlights, drawn lines, rectangles, images; editing existing text; replacing an existing image; deleting, rotating, or reordering pages — all of these are covered by undo history.

A habit worth building

On a document with a lot of changes, it helps to check your work after each related group of edits (say, "finished all the text changes on this page") rather than making dozens of changes and reviewing everything at once — if something needs undoing, you'll need far fewer steps back, and it's much easier to pinpoint exactly where things went wrong.

Can you still undo after downloading?

Undo history only exists within the current editing session — once you've downloaded the file and closed the page, it's gone. That's one more reason to keep a backup of the original for anything important, in case you need to start fresh.

Edit with confidence — Ctrl+Z is always there if something goes wrong.

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