Crop PDF pages
Draw a crop box over the area you want to keep and apply it to one page or the whole document. Margins, headers or scanned borders can all be trimmed away — processed locally.
or drop files here
Tip: select a single file.
How to use Crop PDF
- 1Click "Select PDF file" and choose the PDF you want to crop.
- 2Drag the crop handles on the page preview to set the visible area, and choose which pages to apply it to.
- 3Click Crop PDF. The cropped document is saved in your browser and downloaded.
Why use PDF Lab
- Trim margins or crop to a region of interest on any page.
- Files stay on your device — nothing is uploaded to any server.
- No account, no signup, no watermark on the output.
- Free to use with no per-file limits beyond your device's memory.
- Works on desktop and mobile browsers, including offline after first load.
- Apply the same crop to all pages or set different crops per page.
- Great for removing oversized white borders from scanned documents.
Your file never leaves your browser
Crop PDF runs entirely on your device using pdf-lib and pdf.js — both self-hosted by PDF Lab, so no third-party CDN sees your traffic. There is no upload, no account, no log of your file.
How browser-based PDF processing works →Crop PDF — questions
- No. Every operation runs in your browser using JavaScript. Your file is loaded into your browser's memory, processed, and a result is saved to your device. Nothing is sent over the network.
- No. Because the processing happens in your browser, neither PDF Lab nor any third party has access to the file contents. You can verify this by opening your browser's network tab while using the tools — no file data is transmitted.
- There is no enforced limit, but performance depends on your device's memory. Most modern browsers comfortably handle PDFs up to about 100 MB. Very large files may slow down your browser tab.
Are my files uploaded to your server?+
Can PDF Lab see the contents of my files?+
Are there file size limits?+
Related tools
Resize Pages
Standardise a mixed-size PDF to A4, US Letter, A3 or any custom dimension.
Rotate PDF
Rotate individual pages or the entire document 90°, 180° or 270° in a single click.
Redact PDF
Draw redaction boxes over sensitive content — names, numbers, addresses — and burn them into the PDF permanently.
PDF to JPG
Export each PDF page as a full-resolution JPG image.
Organize Pages
Drag pages into any order, duplicate them, or remove the ones you don't need.
Delete Pages
Select individual pages or ranges you want gone and PDF Lab removes them instantly.