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PDFSimplifyPrivate
Newedit utility

Crop PDF

Visually trim page margins and bounding boxes across single or all pages.

Your PDF is processed locally in your browser.

PDFSimplify processes documents on your device using client-side WebAssembly and Web Workers. No document data is transmitted to our servers or external cloud services during processing.

Drop your PDF here to crop

Visually crop page margins and bounds directly in your browser

No file size limit imposed by server • Processed locally in your browser

How Crop PDF Works in Your Browser

Calculates viewport-to-point transformations in browser memory and modifies the `/CropBox` entry of the PDF page dictionary locally using pdf-lib.

Why client-side processing is more private:

Unlike conventional online converters, your documents never traverse external networks to third-party processing servers. Everything happens inside your local machine’s memory.

How to Use Crop PDF

1

Upload PDF

Select the file to crop.

2

Adjust Bounds

Drag the visual crop rectangle to frame desired content.

3

Apply & Save

Export your cropped document.

Key Features

Interactive resizable visual crop box
Accurate screen-to-PDF coordinate transformation
Apply to current page or all pages uniformly
Validates bounding box dimensions to prevent corrupt boxes

Helpful Tips

  • •Great for removing printer registration marks and scanning borders.

Troubleshooting & Notes

  • •Cropping changes the visible window of the page; underlying vector objects outside the crop box remain in the file structure.

Frequently Asked Questions

Can I crop all pages at once?↓

Yes. Select the "All Pages" option to apply the crop boundaries uniformly across the entire document.

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Related Guides & Articles

How to Permanently Rotate PDF Pages (0°, 90°, 180°, 270°)

Why viewing rotation in Acrobat does not always save to disk, and how to permanently stamp correct page orientation.

How to Visually Organize, Reorder, and Delete PDF Pages

A practical guide to rearranging pages, deleting unwanted sheets, and fixing document flow using a visual grid.