Undo, redo and autosave

Your changes are saved automatically. Use Undo and Redo to step back and forward.

Applies to Windows 10 or later

Kiwi PDF saves your work automatically while you edit — you never need to tap a Save button.

How autosave works

Every change is saved immediately. The title bar does not show an unsaved-changes indicator because there is nothing to save manually.

Undo and redo

Click the Undo and Redo buttons in the toolbar, or press ⌘ Z / ⌘ ⇧ Z (Mac) or Ctrl Z / Ctrl Y (Windows).

What cannot be undone

Deleting a file from the file manager (not an editor action).
Exporting or sharing a file (the export itself is not reversible, but the original file is unchanged).

Undo history is cleared when you close the editor. Reopening a file starts a fresh history.

Only saves when you make a change

Kiwi PDF only writes the file when you actually edit it. Simply opening and viewing a PDF — even selecting annotations — does not trigger a save. This protects the file's modification date and any digital signatures.