Free PDF Tool · Pages

Crop PDF

Run crop pdf in your browser. Free, private, no signup — your selected files are processed in your browser and are not uploaded to our server.

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Drop your file here

or click to browse from your device

Accepts: .PDF

About this Crop PDF

Crop the margins of your PDF with our crop pdf tool. Use visual crop, auto-detect white margins, or enter margins in PDF points. The visible page window is adjusted with the PDF crop box.

Cropping uses the PDF crop box — the underlying page content is unchanged, just the visible window is shrunk. Crop-box editing usually avoids rasterizing the kept page content. The output PDF is rebuilt, so structure, metadata, bookmarks, forms, signatures, or object byte order may change.

Your privacy is the default. Your selected files are processed in your browser and are not uploaded to our server; all processing happens client-side using browser PDF libraries such as pdf-lib and PDF.js where needed. Closing the tab clears the working session from this page; downloaded files remain on your device.

This tool is free to use with no signup required. Large files may be limited by your browser’s memory and device performance. Part of PDF Tools Base, a privacy-first collection of 161 PDF utilities. Bookmark the page for next time, and explore related tools in the footer below.

How to use the Crop PDF tool

  1. Drop your PDF.
  2. Choose visual crop, auto-detect, or manual point-based margins.
  3. Click Process and download.

Why use PDF Tools Base?

100% Browser-Based

Crop PDF processes selected files in your browser. Your selected files are processed in your browser and are not uploaded to our server.

No Server Upload, No Signup

Your selected files are processed locally in your browser. No account, no server upload, no email needed.

No Watermark Ever

Outputs are clean. We never stamp our brand or a paywall watermark on your files.

Free to Use

No accounts and no signup. Use the tool as much as you need within reasonable browser limits.

Works on Every Device

Windows, Mac, Linux, iPhone, iPad, Android, Chromebook. Any modern browser.

Built on Open Source

Powered by browser-side open-source PDF libraries such as pdf-lib and PDF.js, depending on the operation.

Common uses for crop pdf

Trim white space

Tighten margins for a cleaner print.

Trim scanner borders

Remove visible white edges or scan shadows.

Resize for screens

Smaller margins read better on small devices.

Frequently asked questions

Is Crop PDF safe to use?

Yes. Everything happens in your browser. Your selected files are processed in your browser and are not uploaded to our server. Closing the tab clears the working session from this page; downloaded outputs remain on your device until you delete them.

Do I need to register or sign in?

No. No account, no email, no sign-up. Open the page and start using the tool immediately. Free to use, no signup needed.

Is there a watermark on the output?

No. PDF Tools Base never adds a watermark or branding to your output. Your final file is clean — just what you produced from the original.

Is there a file size limit?

There is no fixed limit. Files are processed in your browser, so RAM, page count, and file complexity affect what is feasible. Phones may struggle with large PDFs; try splitting first or use a desktop browser.

Does this work on mobile devices?

Yes. The tool works on all modern mobile browsers: Chrome on Android, Safari on iOS, Firefox, Edge, Brave. The drag-and-drop also accepts files from your phone’s file manager.

Is crop pdf reversible?

We modify the crop box, not the underlying content. If you keep the original file, you can always go back. If you want to crop content destructively, render each page as an image first.