Crop PDF margins — free, no watermark
Trim white space or scanner borders off every page at once. Set the margins in millimeters, watch the live preview, and download — without your file ever leaving the browser.
- ✓ No watermark
- ✓ No sign-up
- ✓ No file size limit
- ✓ Works offline
How to crop pdf
- 1Add a PDF — the first page appears as a preview.
- 2Enter how many millimeters to trim from the top, bottom, left, and right; the highlighted area shows what will remain.
- 3Click ‘Crop all pages & download’ to apply the same trim to the whole document.
Scans often come with fat black edges or letterhead margins that waste screen space, and slide handouts drown in padding. Cropping tightens every page in one pass — great before reading on a tablet or re-printing.
Server-based croppers make you ship the whole document off just to shave its edges. pdfia's crop runs locally, which means instant results and zero exposure for whatever the pages actually contain.
Frequently asked questions
＋ － Is my PDF uploaded to be cropped?
No. The preview and the crop are computed entirely in your browser; the file never travels to a server.
＋ － Is cropping destructive?
No — this sets each page's crop box, which controls the visible area. The underlying content is still in the file, and another tool can restore it later.
＋ － Can I crop each page differently?
This tool applies one margin setting to all pages, which covers the usual case of uniform scanner borders. For a single odd page, extract it first, crop, then merge back.
＋ － What if I trim too much?
The tool blocks impossible values (where nothing would remain), and because the crop is non-destructive you can always redo it from the original file.