Crop PDF

Runs in browser PDF Editing & Annotation

Draw the crop box directly on the page, adjust its corners, and choose whether every page gets the same margins. By default the crop is reversible (a CropBox); choose "cut" to also set the page size, so readers no longer show anything outside the box — the content itself stays in the file, so use Redact for anything sensitive.

Privacy: Processed locally in your browser. Your file is not uploaded.

What is a PDF annotation, and why does whiting-out text not remove it?

An annotation is an object attached to a page on top of its content: highlights, underlines, strike-throughs, sticky notes, free text, ink drawings, shapes, stamps and signature fields are all annotation types defined in ISO 32000, stored in the page's /Annots array and editable or removable later. Flattening draws them permanently into the page content. The PDF editor on this site keeps only highlights, underlines, strike-throughs (unless you choose to flatten them) and sticky notes as annotations; the text, drawings, shapes, stamps and signature images it adds are written straight into the page content and are permanent. A white rectangle drawn over text is exactly that — a shape on top — so the text beneath still exists, copies and searches; only redaction, which deletes the underlying content, removes it.

Security note: Covering text with a shape is not redaction: the hidden text remains in the file and can be selected, extracted or found by search. Use a redaction tool that removes content, then check the result by searching for the removed text.

Read the guide: How to Edit a PDF Without Uploading It

How to use Crop PDF

  1. Drop a PDF.
  2. Drag the area to keep.
  3. Choose reversible or cut, and whether all pages get it.
  4. Click "Save PDF" and download.
“Reversible” sets only the crop box and “Cut” also sets the page size, but in both the content outside the box stays in the file.

Reversible (crop box only)Default

Boxes set:
/CropBox
Page size (media box):
Unchanged
Readers show:
Only the area you dragged
Full page back:
Another tool can restore it
Content outside the box:
Still in the file: the content stream is unchanged

Cut (set the page size to the box)

Boxes set:
/CropBox /MediaBox /BleedBox /TrimBox /ArtBox
Page size (media box):
Set to the box
Readers show:
Only the area you dragged
Full page back:
Only a determined user can recover it
Content outside the box:
Still in the file: the content stream is unchanged

For sensitive content use Redact PDF: cropping hides what is outside the box, it does not remove it.

Crop PDF features

  • Drag the crop box on the page; corner handles
  • Apply to all pages (relative margins) or one page
  • Reversible (CropBox) or cut (MediaBox too)
  • Works on rotated pages
  • Local processing

Crop PDF example

Trim scanner margins from a 30-page scan

Input:

Box drawn on page 1, "apply to all pages", cut

Output:

scan-cropped.pdf — every page trimmed to the same relative box

Frequently asked questions about Crop PDF

Is cropping reversible?

With the default "reversible" setting, yes: only the CropBox is set, and another tool can restore the full page. With "cut", the MediaBox is set too and readers discard the outside; the content stream is unchanged either way, so a determined user can still recover it — use Redact for sensitive content.

How do I crop all pages the same way?

Keep "Apply to all pages" ticked; the same relative margins are applied to every page, including pages of a different size or orientation.

Can I crop with exact millimetres?

This page is visual. For numeric margins use Resize PDF Pages (scale) or type the box in the full PDF Editor after dragging it — the status bar shows the size in points.

Is my PDF uploaded to a server?

No. The file is opened and processed by your browser with WebAssembly and JavaScript; nothing is sent to Mutqan Soft or anyone else. Close the tab and the file is gone. Downloading the result needs a free account — no subscription, no payment.

Can I use it on a password-protected PDF?

Yes, if you know the password: the file list asks for it once and every operation then works on the decrypted pages. The output is saved without a password unless you protect it again.

Technical notes

The crop box is stored in PDF user space per page. Reversible mode sets /CropBox only; cut sets /MediaBox, /BleedBox, /TrimBox and /ArtBox as well. Content streams are not altered.

References