Why crop all pages at once?
Scanned PDFs almost always share the same flaw on every page: thick white borders, black scanner edges, or oversized margins that waste screen space. Cropping pages one by one in a 50-page document is miserable. Cropping all pages at once with one margin setting fixes the whole document in seconds.
How to crop all pages of a PDF at once online for free
- Open the Crop PDF tool.
- Drop your PDF into the upload zone.
- Set margin percentages for the top, right, bottom and left edges (e.g. 8% all round for typical scan borders).
- Leave the pages field empty to apply the crop to all pages.
- Preview, click Crop PDF, and download the trimmed file.
What do the margin percentages mean?
Each percentage trims that fraction of the page edge — 10% off the top removes the top tenth of every page. Start small (5–10%) and check the preview: too aggressive and you'll eat into the actual content. The remaining content keeps its full quality; only the margins are removed.
Crop only certain pages
Need different margins for the cover? Enter a page range like 2-5 or a list like 1,3,7 in the pages field to crop just those pages — perfect when title pages need gentler treatment than body pages.
Frequently asked questions
How do I crop all pages of a PDF at once online for free?
Open the free Crop PDF tool, upload your file, set margin percentages for each edge, leave the pages field empty, and click Crop PDF — every page is trimmed in one pass.
Can I crop only certain pages instead of all of them?
Yes. Enter a page range like 2-5 or a list like 1,3,7 in the pages field to crop just those pages with their own margin settings.
What do the margin percentages mean?
Each percentage trims that share of the page edge — 10% off the top removes the top tenth of the page. Start with 5–10% and check the preview before going further.
Will cropping reduce my PDF's quality?
No. Cropping trims the margins — the remaining content keeps its full quality.
Does it remove black scanner edges?
Yes. Black scan borders are just margins like any other — set the percentages to cover them and they disappear from every page at once.
Are my files uploaded anywhere?
No. Cropping happens entirely in your browser — your document never leaves your device.
Try it now
Ready? Crop all PDF pages at once — free, no signup, private in-browser processing.