Crop PDF
Visually crop PDF pages. Define a crop region to apply to your entire document.
Drag & drop files here
or click to browse from your device
Comprehensive Guide to PDF Page Cropping & Margin Trimming
The Crop PDF tool allows you to visually select, adjust, and apply custom crop boundaries across any multi-page PDF document. Ideal for researchers, warehouse operators, and digital readers, it trims distracting scanner borders, removes excess white margins, and resizes documents for dedicated reading and printing hardware.
Popular Real-World Use Cases
Trimming 4x6 Thermal Shipping Labels
Crop full-page 8.5x11 PDF invoices down to just the 4x6 barcode shipping label section for direct printing on thermal label printers (Zebra, Rollo, Munbyn).
Optimizing Academic Papers for Kindle & Tablets
Eliminate wide blank margins and running headers from double-column journal articles to make text larger and readable on 6-inch to 10-inch eReaders.
Removing Scanner Borders & Punch-Hole Artifacts
Trim dark borders, staple shadows, and paper edges from digitized document scans for a clean, professional appearance.
How In-Browser Processing Works
The tool uses pdfjs-dist to render an interactive canvas preview of your document, allowing you to drag and scale a crop rectangle. When you apply the crop, pdf-lib modifies the PDF's internal MediaBox, CropBox, and TrimBox coordinate vectors for every page, establishing new visual display boundaries without recompressing underlying vector glyphs or images.
Pro Tips for Best Results
- The crop rectangle defined on the preview page is applied uniformly across all pages in the PDF.
- Because PDF coordinate systems measure from the bottom-left origin, our tool automatically translates screen coordinates to standard PDF points (72 DPI).
- Cropping modifies the visible viewing box. If you need to permanently redact confidential content, ensure out-of-bounds text is removed before public sharing.
How It Works
Upload PDF
Select your multi-page or single-page PDF document.
Processed on your device
Drag the crop handles on the interactive preview to frame your desired content area.
Download Cropped PDF
Export the trimmed PDF with modified CropBox coordinates intact.
Frequently Asked Questions
Does cropping a PDF reduce its file size?
Cropping modifies the PDF's CropBox display boundary, instructing PDF readers to show only the framed area. Because embedded images and vector streams remain intact, file size changes are minimal while visual framing is perfected.
Can I crop odd and even pages differently?
Currently, the crop box you configure is applied consistently across all pages in the document. For book scans with alternating margins, split the PDF into odd and even pages first.
Will hyperlinks and vector text inside the cropped area still work?
Yes! Vector text remains crisp and selectable, and interactive links within the cropped boundary continue to function normally.
Is cropping safe for confidential legal documents?
Yes. All bounding-box adjustments happen strictly within your local browser runtime. No document data is ever uploaded to external servers.
Is my file uploaded anywhere?
No — everything happens in your browser, your file never reaches a server.
Do I need to create an account?
No, no sign-up required.
Is this really free?
Yes, no hidden charges, no watermark on your output.