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Crop PDF Page Margins

No account. No upload. Just the tool.

Scanners often leave junk at the page edges. Old documents have wider margins than modern templates. A presentation slide PDF you exported has unwanted whitespace around each page. Signegy crops PDF pages right in your browser. Set top, bottom, left, right offsets in points; preview the crop on every page; download. Nothing uploads.

How to Crop

  1. Drop your PDF onto the tool above. Thumbnails of the first 12 pages render so you can see the crop preview.
  2. Use the four sliders (Top / Bottom / Left / Right) to set how many points to trim from each side. The blue rectangle on each thumbnail shows what will remain after the crop.
  3. Click “Download cropped” — the result downloads with the new crop box applied to every page.

PDFs measure in points where 1pt = 1/72 of an inch. A US Letter page is 612×792 points. A 36-point trim is half an inch. The slider max is set to half each dimension so you can’t crop the page out entirely.

What Cropping Actually Does

It changes the crop box — the rectangular area each PDF viewer renders by default. The original content is still in the file: a viewer that ignores the crop box (some forensic tools, some print drivers) can show the full page. For most use cases — preview, print, share — the visible area is what matters.

If you need to permanently delete the cropped-out content, you’d have to re-rasterize the PDF (via Compress PDF, which rasterizes by design) so the cropped pixels are physically gone.

Honest Limits

  • Same crop for all pages. Per-page cropping isn’t in v1. Workaround: split, crop each piece individually, merge.
  • Margins-based, not visual rect-drag. You set point offsets, not draw a box. The thumbnail preview shows the result so you can iterate quickly.
  • First 12 pages preview. The rest of the document gets the same crop, but only 12 thumbnails render to keep the page snappy.
  • Crop box is non-destructive. A viewer can recover the original page area if it ignores the crop box.

Common Use Cases

Removing scanner edges. Black bars, color stripes, dust marks at the page edges that came from the scanner.

Trimming presentation exports. A 16:9 slide deck exported as PDF often has whitespace around each slide. Crop to just the slide.

Tightening a layout. A document with 1.5-inch margins that should be 0.5-inch margins for sharing.

Removing a header/footer. A repeated company logo or page footer from a source document that you don’t want in the redistributed version.

Pair With Other Tools

Signegy provides general information, not legal advice. Consult a qualified legal professional for advice specific to your situation and jurisdiction.

Frequently Asked Questions

What does cropping a PDF actually do?

It changes the visible area of each page (the 'crop box' in PDF terms). Content outside the crop box is hidden in viewers and clipped on print. The original page contents aren't deleted — they're just not displayed by default. A reader who knows what they're doing can restore the full page.

Why would I crop a PDF?

Common reasons: removing scanner artifacts at the page edges, trimming a wide margin to fit content on screen, removing a header or footer that came from the source document, or cleaning up a screenshot embedded as a PDF page.

Are the crop dimensions in pixels?

No — points. PDF measures in points (1pt = 1/72 inch). A 1-inch margin is 72 points. The thumbnail labels show each page's full dimensions in points so you can size the trim relative to the actual page.

Can I crop different pages differently?

Not in v1. The same crop is applied to all pages. If you need to crop pages differently, split the PDF, crop each piece, then merge.

Will cropping shrink the file size?

Slightly, but not much. The hidden content is still in the file — only the visible area changes. To genuinely shrink the file, run the cropped PDF through [Compress PDF](/compress-pdf-online).