SKSolveKit

Files never leave this device

Page board · Crop

Crop a PDF with a live margin preview

Trim margins by percentage per side, watch the preview update on the page, apply the crop to all pages and export — without the file leaving your device.

Reading files…

What it solves

Wide margins out, content front and center.

Scans with huge borders and slides with wasted margins read badly on tablets and e-readers. This tool lets you trim each side by percentage — up to 45% per side — with a live preview drawn directly on the page, and applies the same crop to every page in one go. The result is a copy whose visible area is just the content.

Cropping adjusts the visible box without deleting anything: a PDF reader can technically restore the hidden area, so it is not a redaction tool.

Typical uses

01

Trim a report before sending

Open a long document, keep exactly the pages the recipient needs and export a lighter, focused copy.

02

Fix a messy scan

Rotate sideways pages, drop blank separator sheets and put the pages back in the right order before sharing.

03

Prepare a clean handout

Arrange the pages, tidy the margins and export a copy that looks intentional rather than improvised.

Quick guide

From open file to exported copy.

  1. 01Open the PDF — it is read on this device and never uploaded.
  2. 02The pages appear as a board of real thumbnails; large documents load progressively.
  3. 03Select and arrange: click pages, type ranges like 1-3, 5, 8-, or use the controls on each card.
  4. 04Run the main action; the new document is built in the browser's memory.
  5. 05Download the exported copy and check it — the original file stays untouched.

Limits worth knowing

Honest before you export.

  • 01

    Everything happens in the browser's memory: a guard estimates each file first and warns or blocks when a document is too large for this device.

  • 02

    Every action produces a new download; the source file on your device is never overwritten.

  • 03

    A rebuilt document may not keep every document-wide extra — form logic, digital signatures or attachments of the original can be missing, so check the exported copy.

  • 04

    Password-protected or damaged files cannot be opened here; unlock or repair them first with their dedicated tools.

Frequently asked questions

Cropping a PDF — common questions.

01Does the PDF leave my device?

No. The file is opened, displayed and rebuilt entirely in the browser on this device. Nothing is uploaded, and there is no account and no watermark.

02Is the original file changed?

No. Every action produces a new PDF for download; the source file on your device stays exactly as it was.

03How do I select many pages quickly?

Type ranges in the range field — for example 1-3, 5, 8- selects pages one to three, page five and everything from page eight on. Invalid terms are pointed out verbatim.

04Do the pages lose quality?

No. Pages are copied losslessly with pdf-lib rather than re-rendered, so text and images keep exactly their original quality.

Related tools

Keep working on the document.

01 / PDF

Rotate PDF Pages

Rotate individual or selected PDF pages visually and export the corrected document without altering the original.

Open tool02 / PDF

Organize PDF Pages

Reorder, rotate, duplicate and remove pages on a visual board, then export the final arrangement as a new PDF.

Open tool03 / PDF

Compress PDF

Reduce a PDF locally with clear quality profiles, predicted trade-offs and a before-and-after size check.

Open tool
All PDF tools

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Useful next stepRotate PDF PagesRotate individual or selected PDF pages visually and export the corrected document without altering the original.