Crop PDF

Crop PDF pages by setting margins to remove from each side.

Browser Processing Only (Offline Ready)
1

Upload your file

Drag & drop or click to select a file from your device.

2

Adjust settings

Configure options to get the result you want.

3

Download result

Get your processed file instantly. No waiting.

Key Features

4-Side Independent Margins

Set top, right, bottom, and left margins independently. Trim white borders from scans, remove headers/footers, or focus on a specific column or article region.

Point-Precise Input

Specify margins in PDF points (1 point ≈ 0.35mm), the same unit print designers use. Hit exact trim sizes for booklets, journals, and standard print layouts.

Same Crop Across All Pages

One crop setting applies uniformly across the entire document. Useful for batch-trimming scans where every page has the same margin issue or fixed page layout.

Preserves Vector Content

Cropping uses PDF page boundary boxes — no re-rasterization. Text stays selectable, vector graphics stay sharp, and file size barely changes after the crop.

Instant — Even on 1000 Pages

A 1000-page document crops in well under a second because crop boxes are metadata, not pixels. No long progress bars even for thick scanned books.

100% Private — Stays Local

Crop operations run via pdf-lib in your browser. Floor plans, medical images, and confidential documents never get uploaded to any server.

About This Tool

What is Crop PDF?

Crop PDF trims margins from PDF pages by adjusting the crop box. Remove unwanted whitespace or borders from all pages at once by specifying crop margins in points.

Common Use Cases

  • Margin Removal: Trim excessive whitespace from document margins
  • Print Optimization: Remove print margins for edge-to-edge printing
  • Slide Cleanup: Crop borders from converted presentation slides
  • Scan Cleanup: Remove scanner borders from scanned documents
  • Display Optimization: Reduce margins for better on-screen reading

Privacy-First PDF Cropping

PDF cropping happens entirely in your browser using pdf-lib.

  • Your documents never leave your device
  • No server processing
  • Works offline after the page loads

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Add Page Numbers

Add page numbers to every page of a PDF document.

FAQ

PDF uses points as its unit of measurement. 1 point = 1/72 inch ≈ 0.35mm. A standard US Letter page is 612 × 792 points.
Cropping changes the visible area but does not remove the hidden content, so file size may not decrease significantly.
No. All processing happens entirely in your browser. Your data never leaves your device — nothing is uploaded to any server.
Yes. Once the page has loaded, the tool works completely offline. For the best experience, install PrivaDeck as a PWA from your browser.
There are no server-imposed limits. The maximum file size depends on your device's available memory and browser capabilities. Most modern devices handle files up to several hundred MB without issues.