About Crop PDF
Trim the margins off every page of a PDF without destroying any content. SnapToolz' Crop PDF adjusts the page's visible region (the CropBox in PDF terms) — content outside the crop is hidden but not deleted, so the operation is fully reversible by setting the crop back to the original. Useful for tightening up scanned documents with huge white borders, removing watermarks that sit in the margins, or producing print-ready output sized to a smaller paper. Same crop is applied to every page, with margin presets (small/medium/large) plus per-side custom values. Everything stays in your browser.
- No uploads
- Browser-only
- Works offline
- 100% free
How it works
- 1
Drop your PDF
Single PDF up to 200 MB. The preview shows the first page with crop overlay.
- 2
Set the crop
Pick a margin preset (small / medium / large) or set top/right/bottom/left margins individually in points (72 pt = 1 inch).
- 3
Apply and download
Click Crop. The PDF rebuilds with the new visible region on every page and downloads.
Related tools
Browse allFrequently asked questions
Are my files uploaded to a server?
No. Every tool on SnapToolz runs entirely inside your browser using JavaScript and WebAssembly. Your file is read locally, processed in memory, and the result is offered as a download. Nothing is sent to a server — there isn't one to send to.
Is the cropped content actually deleted?
No — PDF cropping adjusts the visible region (CropBox), it doesn't delete content. Anything outside the crop is hidden but still in the file's content streams. If you need to permanently remove content (e.g. for redaction), don't rely on cropping — use the PDF Editor's Redact tool with solid bars.
Can each page have a different crop?
v1 applies the same crop to every page (the common case for scanned documents with uniform margins). For per-page crops, repeat the operation in a tool like Acrobat or use SnapToolz' PDF Editor with redaction bars to mask page-specific regions.
What if my PDF has different page sizes?
The crop is applied uniformly. If pages already have different sizes (mixed A4 / Letter / custom), each page is cropped by the same margin values from its own edges, which produces visually consistent output even when source sizes differ.
Does it work offline?
Yes. SnapToolz is a Progressive Web App. After your first visit, the app is cached on your device and every tool keeps working without an internet connection.
Is SnapToolz free?
Yes — every tool is 100% free with no sign-up, no watermark, no hidden tier. The whole platform is open source and we have no plan to gate features.