How do I crop a PDF document online?

Drag and drop your PDF into the workspace, adjust the interactive visual crop box over the page to select the desired area, choose whether to apply the crop to all pages or the current page, and click 'Crop PDF & Save'.

Does cropping reduce the text or image quality of my PDF?

No. Our tool modifies the native PDF CropBox and MediaBox parameters losslessly. Vector text, fonts, hyperlinks, and embedded images retain 100% of their original sharpness and resolution.

Are my confidential files uploaded to any server?

Never. All page rendering and PDF trimming operations execute 100% locally in your web browser memory. Your documents never leave your computer or mobile device.

Can I crop different pages with different dimensions?

Yes! You can choose 'Apply to Current Page Only' to crop specific individual pages, or 'Apply to All Pages' to trim consistent margins across the entire document.

Can I specify margins in millimeters instead of points?

Yes. You can switch between points (pt) and millimeters (mm) in the margin settings toolbar, and the visual crop box will adjust automatically.

100% Client-Side In-Browser Security

Crop PDF & Trim Margins Online

Visually select and trim unwanted white borders, header/footer margins, or scan edges with lossless vector precision directly in your browser.

Choose a PDF or Drag & Drop Here

Supports documents, presentations, scanned receipts, papers, and books

🔒 100% private: Files never leave your browser or get uploaded to any server.

document.pdf 0 KB 0 Pages 0 × 0 pt

0 × 0 pt

Margin Trimming

Top Margin:

Bottom Margin:

Left Margin:

Right Margin:

Apply Crop Scope

Apply crop to All Pages (Consistent margins) Apply to Current Page Only

Output File Name:

Cropping PDF pages... 0%

PDF Cropped Successfully!

Unwanted page margins and borders have been trimmed losslessly while preserving full vector sharpness.

Scope: All Pages Size: 150 KB Trimmed Area Applied

How to Crop a PDF Document

Three simple steps to trim margins and remove unwanted PDF borders.

Upload Your PDF

Drag and drop your PDF document or book into the browser workspace.

Adjust Visual Crop Box

Drag and resize the crop selection handles or type exact margin numbers in points or mm.

Download Cropped PDF

Click Crop & Save to instantly download your perfectly trimmed, vector-sharp PDF.

Why Crop Your PDF Files?

Optimize presentation, reading comfort on tablets and e-readers, and eliminate scanner margins.

Optimized for Tablets & E-Readers

Eliminate large blank page borders to make text larger and much easier to read on Kindle, iPad, and mobile screens.

Lossless Vector Precision

Cropping sets native PDF boundary boxes without rasterizing text or re-encoding graphics, preserving 100% original quality.

Cut Scanner Black Edges

Clean up dark borders, punch holes, and crooked scanning shadows on scanned receipts, book pages, and agreements.

100% Client-Side Privacy

Your confidential documents remain strictly inside your browser memory. Zero files are uploaded to remote servers.

Frequently Asked Questions

Everything you need to know about PDF cropping, margins, and resolution.

Does cropping a PDF delete text or reduce quality?

No. Cropping modifies the document view boundaries (CropBox and MediaBox) so that PDF readers render only the cropped region. All underlying vector text and original high-resolution elements remain intact and completely sharp.

Can I apply the same crop to all pages of a book or report?

Yes. By selecting "Apply crop to All Pages", the exact margin proportions you configure will be applied consistently across every page in the document in a single click.

Can I crop only a single specific page?

Yes. Navigate to the desired page using the page navigation bar and select "Apply to Current Page Only" before saving.

Are my uploaded documents secure and private?

Yes, 100%. All processing runs locally inside your browser memory using PDF.js and PDF-Lib. Your files never touch external servers or cloud databases.

How do points (pt) convert to millimeters (mm)?

Standard PDF points are 1/72 of an inch (approx. 0.3528 mm). You can use our unit switcher to work effortlessly in either points or millimeters.