Crop a PDF
Scans arrive with black edges, book pages come with wide gutters, and slides exported to PDF carry margins that waste half a tablet screen. Trim each side by however many millimetres you need, on every page or just the ones you name. Cropping hides an edge rather than deleting it — there's a question below about that.
Your file stays on this computer. There’s no upload button here, because there’s nowhere to send it. This tool runs inside the page you opened — like a calculator on a web page, it keeps working once it has loaded. How this works, and how to check it →
How to use it
- Choose your PDF file.
- Enter how many millimetres to trim from each side. Leave a side at 0 to keep it.
- Optionally name specific pages, then click Crop.
Questions
Is my file uploaded anywhere?
No. The whole tool is inside this page, so the work happens on your computer. There is no server to send it to. If you'd rather check than take our word for it: use the tool once, on a sample file, with the settings you want. Then turn off your wi-fi and do exactly the same thing again in that tab, without reloading. It still works, because everything it needs is already here.
Does cropping delete the content I cropped off?
No. Cropping sets a smaller window on the page. Everything outside it is still in the file, and anyone who changes the crop back can read it. If the page has to lose that content for good, delete the whole page with Delete pages from a PDF instead. To keep the page and remove only part of it, you need redaction software such as Adobe Acrobat Pro.
Why millimetres rather than a drag-to-crop box?
There's no drag box here — you type the number of millimetres instead. That suits the repeatable jobs: 8mm off every edge of a scan, or a 25mm gutter off every page. If you don't know the measurement, trim 5mm, look at the result and adjust.
What if I trim too much?
You get an error naming the page and its actual size in millimetres, rather than a document full of blank pages. Nothing is written until every page passes.
Will the printed size change?
Yes. A cropped page is genuinely a smaller page, so printing it on the original paper size will scale it up unless you tell your printer otherwise.