Free PDF Cropper - Crop PDF Margins & Pages Online
Trim oversized margins, select a specific area to keep, and apply cropping to one page or all pages at once. Zero uploads — runs locally in your browser.
What is Crop PDF?
Unwanted white margins, headers, or footers wasting space in your PDFs? Our free PDF Cropper lets you visually select the area you want to keep and remove everything outside it — from a single page or the entire document.
Draw a crop rectangle directly on a page preview, then choose whether to apply it to just that page or to all pages uniformly. The tool adjusts the PDF's MediaBox and CropBox properties using pdf-lib, which produces a correctly cropped file compatible with all PDF viewers and printers.
Cropping is particularly useful when standardizing page sizes across a merged document, removing oversized scan borders, eliminating scanned book gutters, or preparing PDFs for specific display contexts like e-readers or presentation screens.
All processing is done locally in your browser — no file uploads, no waiting, and no privacy concerns. The cropped PDF is ready for download in seconds.
Powerful Features
Everything you need in one amazing tool
Visual Crop Selection
Draw the crop area directly on a page preview. Drag handles to adjust precisely.
Apply to All Pages
Crop one page or apply the same crop rectangle uniformly across every page.
Numeric Margin Input
Enter exact margins in millimetres or points for precise, reproducible cropping.
Live Preview
See exactly how the cropped page will look before applying changes.
No Upload Required
Files stay on your device. Cropping is done in-browser using pdf-lib.
Viewer Compatible
Cropped PDFs use standard MediaBox/CropBox settings compatible with all PDF readers.
How It Works
Get started in 4 easy steps
Upload Your PDF
Drop your PDF on the upload area. A page preview renders immediately for cropping.
Draw Crop Area
Drag on the page preview to select the area you want to keep. Resize as needed.
Choose Scope
Apply the crop to the current page only or to all pages in the document.
Download Cropped PDF
Click Crop & Download. The finished PDF downloads immediately to your device.
Why Choose Our Crop PDF?
Stand out from the competition
Visual & Intuitive
Draw directly on the page preview — no guessing at numbers or coordinates.
Completely Private
No files sent to servers. Crop runs entirely with JavaScript in your browser.
Standard PDF Box Model
Uses MediaBox/CropBox as defined in the PDF spec for maximum compatibility.
Instant Results
No server processing means immediate output regardless of file size.
Free, No Watermarks
Completely free with no output watermarks, no file size limits, and no account required.
Preview Before Applying
See exactly how the crop will look on the page before committing. No blind guessing.
Perfect For
See how others are using this tool
Scan Border Removal
Remove the dark borders and shadows left by scanner beds on scanned documents.
Book Gutter Trim
Crop out the gutter margins from scanned book pages for cleaner reading.
E-Reader Prep
Crop to content area for better display on e-readers and tablets.
Report Standardization
Ensure all pages have uniform margins when assembling documents from multiple sources.
Whiteboard Captures
Crop excess whitespace and camera noise from whiteboard photo PDFs for cleaner output.
Export Cleanup
Remove large unwanted borders from PDFs exported by design tools like Figma or Illustrator.
Frequently Asked Questions
Everything you need to know about Crop PDF
Cropping adjusts the visible viewport (CropBox) but may not permanently remove hidden content in all PDF structures. For truly irreversible content removal, use our Redact PDF tool.
Yes. Switch to per-page mode, load each page, draw its crop area, and apply separately. The tool tracks individual crop settings per page.
No. Everything runs locally in your browser. Files are never transmitted to any server.
You can use millimetres or PDF points. The numeric input fields let you type exact values for pixel-perfect margin control.
Links and bookmarks are preserved. Cropping only changes the visible area, not the document structure.
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