How to Undo, Redo, and Restore a PDF to Its Original on iPhone

TL;DR

PDFCrop tracks your full editing history, so you can undo or redo any crop at any time — and one-tap restore the document to its original, uncropped state to start over.

Steps

Crop pages in PDFCrop as usual.
Made a mistake? Tap undo — or redo to reapply.
Step through the editing history as needed.
Want a clean slate? Restore to original in one tap.
Re-crop from there.

Why it works this way

Cropping is destructive if you can’t take it back — clip too much and the content’s gone. PDFCrop keeps a full history so any operation is reversible, and a one-tap restore returns the untouched original, so you can experiment freely knowing you’re never more than a tap from where you started.

Tips & edge cases

Experiment freely — undo and restore make cropping low-risk.
Restore is the fastest way to abandon a bad crop entirely.
Check the preview before exporting to avoid needing undo later.

FAQ

Can I undo a crop I regret? Yes. Full undo/redo lets you step back and forward through your edits at any time.

Can I get the original document back? Yes. One-tap restore returns the PDF to its original, unedited state.

Does undo work across multiple pages? Yes. The editing history tracks your operations so you can reverse them.