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Crop PDF

Trim the margins of PDF pages by millimetres or by drawing a box on the page, with white-margin detection. Apply to every page or a range you choose.

Crop PDF1 free run a dayNewPDF ToolsRuns in your browser

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Works in your browser. What you paste or upload is processed on your device.

Key features of the crop PDF

  • Margins in millimetres for each side, or the same on all sides
  • Draw, move and resize the crop box on the page with mouse or touch
  • Detect white margins with one click
  • Apply to all pages or a range such as 2-12
  • Shows the new page size in mm before you save
  • Sets the crop box and media box, so readers and printers agree on the size
  • Rotated and password-protected PDFs are supported
  • Runs in your browser; your PDF is never uploaded

How to use the crop PDF

  1. Choose your PDF

    Drop the PDF on the tool or tap to pick it. The first page appears with a crop box 10 mm in from each edge.

  2. Set the area to keep

    Drag on the page to draw a box, press Detect white margins, or type the margins in millimetres.

  3. Check other pages

    Use the page arrows to see how the same margins look on the rest of the document.

  4. Choose the pages

    Keep All pages, or pick Selected pages and type a range.

  5. Crop and download

    Press Crop PDF and download the trimmed copy.

What is a crop PDF?

This tool cuts away the edges of PDF pages. Type how many millimetres to remove from the top, bottom, left and right, or draw the area you want to keep directly on the page preview: drag to draw a box, drag it to move it, and pull a corner to resize it. Detect white margins looks at the current page and fits the box around the printed content with a little space to spare.

The crop can apply to every page or only to the pages you list. The tool sets each page's crop box and media box to the new area, so every PDF reader, printer and e-reader shows and prints the trimmed size. The same margins are taken from each page, so pages of different sizes are trimmed to match their own edges.

Limits: cropping hides the content outside the box but doesn't delete it from the file, so the file size barely changes and someone with a PDF editor could restore the hidden part. Never rely on cropping to remove private details; use a redaction tool for that.

Why use a crop PDF?

Wide white margins waste screen space on phones and e-readers, scanned pages often carry dark edges or a strip of the next page, and slides exported to PDF can need trimming before they fit a report. Cropping in the browser fixes all of these without uploading the document.

Crop PDF: frequently asked questions

Something else? Ask the team

Does cropping delete the hidden content?

No. It changes the visible area of each page, so the cut-off part is hidden everywhere the PDF is opened or printed, but the data is still in the file. Use a redaction tool to remove sensitive information for good.

Can I crop just one page?

Yes. Choose Selected pages and type the page number, for example 3. Every other page keeps its original size.

Why did the file size stay almost the same?

Because the content outside the crop box is kept in the file, as in Adobe Acrobat. To make the PDF smaller, run it through a PDF compressor after cropping.

Can I crop on a phone?

Yes. On iPhone or Android, drag with one finger on the page to draw the box and pull its corners to adjust it, or type the margins in millimetres for exact values.

What if my pages are different sizes?

The same millimetre margins are taken from each page, measured from that page's own edges. The tool warns you before running if the margins would leave less than 10 mm of any page.

Is my PDF uploaded?

No. The PDF is opened and cropped on your device by your browser. Our server only counts the run for the daily free use and credits.

Is it free?

You get 1 free run per tool per day; after that each run costs 5 credits with a free AI Rank Lab account. Drawing and adjusting the box is free; only Crop PDF uses a run.

Want to win more AI citations?

Crop PDF is one piece of the puzzle. See how ChatGPT, Gemini, Perplexity, and Google AI Overviews actually view your brand, and get a prioritised list of fixes, with a free AEO & GEO audit from AI Rank Lab.

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fieldnote.app4,571 credits

Site audit

fieldnote.app · SEO, AEO and GEO

Illustrative data
SEO
82
+6
AEO
64
+11
GEO
58
+9
Pages
48
Fixesby impact
  • /pricing · Missing H1High
  • /blog/guide · No FAQ schemaMedium
  • /llms.txt · Not foundMedium
  • /about · Meta description too longLow

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