Crop PDF
Trim margins per page, with automatic white-margin detection.
Processed entirely in your browser. Your file is never uploaded to a server.
- Every page gets its own crop, with a thumbnail strip to switch between them.
- Auto-detect scans a page's actual content and sets tight margins automatically — one page at a time or the whole document at once.
- Sets the crop box — the original content stays in the file, just hidden outside the box.
- Runs in your browser; the file is never uploaded.
Why this is private
- Processed entirely in your browser. Your file is never uploaded to a server.
- Open your browser's DevTools → Network tab while using this tool — you won't see a request carrying your input, because it never leaves your device.
- Nothing you enter is uploaded to a server or shared with us — the processing happens entirely on your device.
Overview
Applies a crop box to each page so viewers and printers only show the region you want — set margins per page (or apply one crop to all of them), or let it auto-detect the content and remove white margins for you.
How to use it
- 1Upload a PDF.
- 2Pick a page from the thumbnail strip, then drag the four margin sliders or click Auto-detect this page.
- 3Use Auto-detect all pages or Apply this crop to all pages to handle the rest at once.
- 4Download the cropped PDF.
Frequently asked questions
What people use it for
Trim white margins off a scan automaticallyAuto-detect finds the content on each page and removes the excess border a scanner or camera added.
Crop a mixed document with different page sizesGive a merged document's oddly-sized pages their own crop instead of one margin forced on everything.
Crop slides down to the content areaRemove the empty band around wide 16:9 slides for printing.
Remove a header or footer stripCrop off a running header that isn't needed in the shared copy.
Focus a page on one figureCrop to a chart or diagram for a quick reference.
Related guides
- How to convert images to PDF (JPG, PNG, phone photos)Turn one or several JPG or PNG images into a single PDF, in the right page order — what the tool does, the steps, and the common snags.
- How to merge PDF files into oneCombine two or more PDFs into a single file, in the order you choose — the steps, what merging does to quality and size, and how to handle pages and images.
- How to compress a PDF to under 1 MBA 1 MB upload limit is common on application portals. Here's what's realistic, how to get there, and when 1 MB simply isn't possible without losing the text.
- How to compress a PDF for email attachmentsGmail, Outlook and most providers cap attachments around 20–25 MB. Here's how to get a PDF under the limit — or send it without shrinking it at all.
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