100% local processing — your data never leaves your device.
Crop PDF Page Margins
Remove white margins from every page in millimeters. 100% local processing via pdf-lib.
Drop a PDF here or click to browse
Proof of local processing
This tool is classified as local in the WebFileTools registry: processing is expected to stay inside your browser.
- •The page is declared as local in the public tool catalog.
- •No server-side storage is announced for this processing flow.
- •The easiest verification is to monitor the Network panel while it runs.
How to verify it yourself
- 1Open your browser developer tools and switch to the Network panel.
- 2Run the processing flow with a test file.
- 3Confirm that no upload request containing your file is sent to WebFileTools.
You use this tool often? Pro includes files up to 500 MB and priority processing.
What is Crop PDF Margins?
Crop PDF Margins removes unwanted whitespace on each page by adjusting the crop box and media box.
How to use this tool?
Upload your PDF, set margins to trim on each side, then download the cropped PDF.
Benefits
- Crops all pages at once
- Margins in millimeters
- 100% browser-based
- No upload
Frequently Asked Questions
- Does my file leave my computer?
- No. Cropping runs entirely in your browser with pdf-lib.
- Are margins applied to every page?
- Yes, the same top, right, bottom, and left margins are applied uniformly.
- Can I enter margins in millimeters?
- Yes, values in mm are converted automatically for the PDF.
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