Crop a Stamp
Trim a seal out of a scanned page — pull each edge in until only the impression is left.
Free preview · No signup · ~10 seconds
Drop a stamp or seal
PNG, JPG, WebP, SVG or a 1-page PDF — up to 20 MB
Runs entirely in your browser. Your image is never uploaded.
Getting one seal out of a full page
Four edges, one at a time
Each slider pulls one edge inward as a percentage of the original. Working edge by edge is slower than dragging a box but far more precise, and it is the only way to nudge a single side by one percent without disturbing the other three.
Crop before anything else
A tight crop is the single biggest improvement to every step that follows. Background removal, thresholding and colour changes all work from what is in the frame, so a page full of text gives them three problems to solve instead of one.
Leave a little rim
Cropping right up to the ink looks tidy and reads as cramped once the seal is placed on a document. Leave two or three percent of margin so the impression has somewhere to sit.
Nothing is resampled
Cropping selects a rectangle of existing pixels. There is no scaling and no quality cost, so a cropped seal is exactly as sharp as the scan it came from.
Cropping is not trimming
This tool is manual. If what you actually want is "cut away whatever empty margin is there", the stamp padding remover does it in one click by finding the edges itself.
Crop or trim?
Crop a stamp
You choose the edges
- Four independent sliders
- Works on any background
- Cuts through content if you want
- Nothing is detected for you
Lifting one seal out of a full scanned page
Removing a margin you did not put there
Remove stamp padding
The edges are found for you
- One click
- Detects the impression bounds
- Needs a uniform margin
- Can leave a margin back
Tightening an export that has empty space around it
A busy scan where the seal is one element among many
How to crop a stamp
Upload the scan
The whole page is fine — that is what this is for. Scanned to PDF instead? A single-page PDF works as well — page 1 is turned into an image in your browser.
Pull the edges in
Adjust each side until only the seal remains, leaving a small rim.
Download
Free preview, or the full-resolution crop in the app.
When cropping is the job
Lifting a seal off a document
Isolate one impression from a scanned, signed page.
Digitising a stamp collection
Cut each impression out of a single test sheet.
Prepping for background removal
Give the transparency tool one small area instead of a full page.
Fixing a loose scan
Tighten a capture that left too much paper around the seal.
Or just ask
Describe the edit in your own words
Type what you want changed and the assistant does it on the canvas — each step lands as a layer you can reopen, so nothing it does is baked in.
No edits yet.
Frequently Asked Questions
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Crop your stamp
Pull the edges in and take the impression.