Free PDF Page Cropper – Crop PDF Margins and Trim Page Boundaries
Crop margins and white space off PDF pages for free in your browser.
The PDF Page Cropper adjusts visible page boundaries across PDF documents to eliminate excessive white margins, scanner dark borders, printer crop marks, and unwanted headers or footers. When documents are scanned from physical paper or exported from desktop publishing software with wide bleeds, reading them on mobile tablets, laptops, or e-ink readers results in wasted screen space and microscopic text. This browser utility recalculates the CropBox and MediaBox coordinates of the PDF page tree, trimming the active viewing viewport to your exact specified coordinates. You can crop individual pages visually with interactive drag handles or apply uniform numeric margin cuts across an entire multi-page document. Crucially, because this tool modifies internal PDF coordinate limits rather than taking screenshots, all underlying vector lines, typography, and searchable text layers remain completely intact. Limitations include the fact that underlying content outside the CropBox is masked rather than permanently destroyed, meaning users needing complete redaction of confidential data should use specialized redaction tools.
How to Use Free PDF Page Cropper – Crop PDF Margins and Trim Page Boundaries
Upload PDF to Crop
Drag your PDF file into the visual cropper interface to render interactive bounding box previews on the canvas.
Adjust Cropping Bounding Box
Use the on-screen drag handles to frame the desired page area or enter exact margin trim values in millimeters or points.
Apply Crop and Export
Choose whether to apply the crop to the current page, all pages, or odd/even pages, then download your neatly trimmed PDF.
Frequently Asked Questions
Does cropping a PDF remove the cropped content permanently for security purposes?
No. Standard PDF cropping modifies the visible viewing rectangle (CropBox). The underlying data streams outside the crop rectangle remain inside the PDF file structure. If you need to permanently sanitize confidential text, use a dedicated redaction tool.
Can I apply different crop margins to alternating odd and even pages?
Yes. For book scans and bound booklets where inner spine margins alternate with outer margins, you can configure asymmetrical crop coordinates for odd and even pages independently.
Will cropping a PDF reduce its file size?
Because cropping adjusts coordinate metadata rather than discarding uncompressed embedded assets, the file size will remain largely unchanged. To reduce file size after cropping, run the document through a PDF compressor.
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