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How to Crop PDF Pages and Remove White Margins Online

Trim PDF margins without rasterizing pages. Learn how crop boxes work and why cropped content may still exist in the file.

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Cropping is useful for scanned documents, slide exports, print preparation, and PDFs with oversized borders. PdfVala changes each page’s crop box, preserving vector text and images at their original quality.

Crop every page

Open Crop PDF
Upload the document
Enter the amount to trim from each side in points
Crop and download the result

Points to inches

PDF dimensions use points. Seventy-two points equal one inch, so 18 points is approximately a quarter inch.

Cropping versus deleting content

A crop box controls what viewers display. Objects outside that box can remain in the underlying PDF. Do not use cropping to permanently redact confidential information.

Quality and file size

Because pages are not rendered into bitmap images, text remains selectable and image quality is unchanged. File size may not shrink significantly.

Choosing safe margins

Start with small values such as 12–24 points. If the tool reports that too little page area remains, lower one or more margins.

Frequently Asked Questions

Will cropping affect all pages?

Yes, the same four margins are applied to every page.

Can I use crop for redaction?

No. Cropping is a display boundary, not secure removal.

Does it upload the PDF?

No. PDF-lib changes the crop boxes locally.

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