Free · Private · In your browser

Crop PDF

Set margin amounts to trim from each edge on all pages.

Drop your files here, or click to browse
Processed on your device — nothing is uploaded

How your files are handled

We built these tools so you never have to wonder where your documents go. Here is exactly what happens when you use them.

  • Your files are processed entirely in your browser using open-source libraries (pdf-lib, PDF.js, and others).
  • Nothing is uploaded to our servers. We have no backend that receives, stores, or scans your documents.
  • We cannot see, store, or access your files — not during processing, not after, not ever.
  • Processing uses your device's memory and CPU. Large files may take longer, especially on phones and tablets.
  • All tools are free with no paywall tricks, no hourly task limits, and no watermarks on your output files.

How it works

Three simple steps. Your files never leave your device, and the result downloads straight to your computer or phone.

Frequently asked questions

Common questions about privacy, pricing, and how these tools work.

More edit tools

Other free PDF utilities that work the same way — private, in-browser, no sign-up.

How to crop PDF

Crop PDF trims the margins of your pages by dragging a crop box over a live preview. The same crop area is applied proportionally to every page.

  1. Add your PDF; the preview renders locally and the file stays on your device.
  2. Drag the crop box or its corner handles to frame the area you want to keep.
  3. Confirm the crop dimensions shown beneath the preview.
  4. Click Crop PDF, then preview and download the trimmed document.

Everything happens in your browser — your file is never uploaded, and there is no sign-up, watermark, or limit.

Frequently asked questions

Are my files uploaded to a server?

No. Every tool runs entirely in your browser using open-source libraries, so your file is processed on your own device and is never uploaded. We have no backend that receives, stores, or scans your documents.

Is it really free, and will there be a watermark?

Yes. There is no account, no sign-up, and no hourly limit, and the tools never add a watermark to your output. UnboundPDF is free and is not affiliated with Adobe.

Does it work on a phone or tablet?

Yes. The tools run in any modern mobile browser as well as on desktop. Because the work uses your device's own memory and processor, very large files simply take longer on phones.

Is the same crop applied to all pages?

Yes. The crop box you set is applied relative to each page's size, so every page is trimmed the same way.

Is the cropped-away content deleted?

No. Cropping hides content outside the box rather than deleting it. If you need it permanently gone, use Redact PDF.