NullKit

PDF tools · Free browser tool

Crop PDF Pages Locally

Apply precise top, right, bottom, and left crop margins to selected PDF pages with a local preview before export.

Phone and computer friendly No document upload Free to use

Private workspace

Adjust visible PDF page boundaries locally while keeping the source document on your device.

Local processing
Tab memory only New output file Review before sharing

Your file is processed by code already loaded in this tab. Your device, browser, extensions, downloads, and any later sharing remain part of the trust boundary.

Ready. Choose a file to begin.

Use 1-z for every page.
Crop margins in millimetres

Choose a file to begin

Adjust visible PDF page boundaries locally while keeping the source document on your device.

What this tool does

A focused PDF job, with a visible boundary.

Adjust visible PDF page boundaries locally while keeping the source document on your device.

01

Independent crop margins

02

Selected-page controls

03

Before-export preview

Know the limits

Local does not mean unlimited.

Browser processing avoids an upload workflow, but available memory, PDF structure, digital signatures, and the settings you select still matter.

  • Cropping changes the visible page box and is not secure redaction.
  • Objects outside the crop box may remain in the PDF.
  • Signed PDFs are kept read-only.

Four local steps

How to use crop pdf pages.

  1. 01

    Choose an unsigned PDF.

  2. 02

    Select pages and enter crop margins.

  3. 03

    Preview a representative page carefully.

  4. 04

    Apply the crop and inspect the output.

Clear answers

Crop PDF pages questions.

Does cropping erase hidden content?

No. Cropping changes the visible page boundary and must not be used as redaction.

Can each side use a different margin?

Yes. Top, right, bottom, and left margins are independent.

Is cropping performed locally?

Yes. The PDF remains in the browser tab.