Crop PDF: Crop PDF Pages Online Free
Trim margins from any PDF in your browser. Drag a crop box, auto-trim to the content, or type exact millimeter or inch values. One page or all pages, nothing uploaded.
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How to Crop a PDF Page
Cut scanner borders, footnote noise, or blank edges from scanned documents:
- Drop your PDF - The first page appears in the preview. Nothing uploads.
- Draw the keep area - Drag a rectangle on the preview, or type exact X, Y, width, and height values in mm or inches.
- Choose the scope - Crop just the page you are viewing, or apply the same proportional box to every page. Auto-Trim instead measures each page's own content.
- Crop and download - The new PDF opens with the crop box set. Pages stay sharp and searchable.
Auto-Trim Margins and Exact Measurements
Scanned pages rarely align with the page edge. Auto-Trim scans the rendered page for ink and fits the crop box around your content automatically, page by page. Prefer control? Enter numbers manually and switch units between millimeters and inches at any time.
- Drag or type - Visual rectangle and numeric fields stay in sync in both directions.
- One page or all pages - Apply mode lets you fix a single odd page or the whole document.
- Mixed page sizes - The box scales as a percentage, so A4 and Letter pages in one file stay consistent.
- Crop box, not deletion - Outside content is hidden from view but preserved in the file, keeping the operation lossless.
- Private and free - No uploads, no accounts, no watermarks, no size caps.
Crop PDF Files Without Uploading
Crop boxes often contain contracts, invoices, and IDs, so the document stays on your device from drop to download. Pair this with the Remove Pages tool to drop whole pages, the Organize PDF tool to reorder what is left, or the full PDF Tools hub. For site-wide checks, run the Free SEO Audit Tool or book our SEO audit services.
Frequently Asked Questions
How do I crop a PDF?
Drop your PDF, drag a rectangle over the area you want to keep, choose whether to crop one page or every page, and press Crop and Download. The preview updates as you draw or type exact numbers.
Does cropping delete the content outside the box?
Cropping sets the PDF crop box, which hides the outside area in viewers while keeping the underlying data intact. That is how every major PDF cropper works, and it keeps the operation lossless and reversible.
What does Auto-Trim do?
Auto-Trim measures the ink on the page and shrinks the crop box tightly around your actual content. Use it to remove scanner margins. In All Pages mode it measures every page individually.
Can I crop just one page?
Yes. Switch the Apply to menu to This page only, set the box on the page shown in the preview, and the rest of the document is untouched.
Can I enter exact measurements?
Yes. Draw once and the X, Y, width, and height fields fill in, or type values directly. Units switch between millimeters and inches, and Enter applies your numbers.
What happens with mixed page sizes?
Your crop box is stored as a percentage of the page, so in All Pages mode it scales proportionally across pages of different sizes instead of cutting them inconsistently.
Is my PDF uploaded?
No. Drawing, measuring, and rewriting happen in your browser tab. The file never travels to a server.