Crop PDF

Drag the frame on the page - or its corner and edge handles - until it holds what you want to keep, and save. Type exact margins in percent if you prefer numbers.

Yes. "Fit to content" renders each page, finds everything that isn't white and frames it with the padding you choose - on every page at once, or on the odd and even pages separately for a scanned book whose gutter switches sides.

No - cropping moves the page's visible box; the content outside stays in the file, invisible but there. To remove something for good, use the Redact tool, which cuts it out of the page.

Nothing is uploaded: the file is opened and processed inside your browser and never leaves your device. Close the tab and it is gone.