Crop a PDF
Drag the crop box to trim margins or unwanted edges from any page, lock it to a ratio like A4 or Square, or pick a margin preset — with a live preview and undo before you export.
Drop a PDF here, or click to browse
How cropping a PDF works
Cropping a PDF sets each page's visible boundary — its CropBox — without touching the actual content underneath. It's the fastest way to trim wide margins, remove a scanner's black border, or tighten up a page before printing, and because nothing is deleted, the crop stays fully reversible if you keep the original file.
Drag any corner or edge of the crop box to resize it, or drag the box itself to move it — the preview updates instantly so you always see exactly what will be kept. For a quick start, pick a margin preset (No margin, Small, Medium, Large) instead of dragging from scratch. If you need the result to fit a specific shape — a square thumbnail, an A4 or Letter page, or a 16:9 slide — lock the aspect ratio first and the box will resize proportionally from its corners. Made a bad adjustment? Undo steps back through your recent changes, and Reset returns the box to its default.
By default the same crop box applies to every page, which is what most documents need. If your PDF has pages with different layouts — for example, a scanned book with slightly shifted margins — turn off "Apply same crop to all pages" and adjust each page individually using the thumbnail rail. Each page keeps its own undo history, so switching pages never loses your progress on the one you left.
Common use cases
- Trimming wide margins before printing or sharing
- Removing a scanner's black border or edge artifacts
- Cutting a page down to just a chart, table, or figure
- Tightening up slides or worksheets exported with extra whitespace
- Standardizing scanned pages to a square or A4/Letter shape before merging them
Everything happens locally in your browser — your PDF is never uploaded to a server.
Related tools
Crop PDF — frequently asked questions
Upload your PDF, drag the crop box's corners or edges to the area you want to keep, then export — no account or payment needed.
Yes — choose Square, A4, Letter, 16:9, or the page's own Original ratio, and the box resizes proportionally from its corners instead of freely. Pick Free at any time to go back to unconstrained resizing.
Yes — turn off "Apply same crop to all pages" and switch between pages using the thumbnail rail on the side. Each page remembers its own crop box.
Click Undo (or press Ctrl+Z) to step back through your recent adjustments to the current page's crop box, or hit Reset to return it to the default centered box.
No. Cropping changes each page's visible area (its CropBox), which is what PDF readers and printers show — the original content just outside the box isn't rasterized or destroyed, so an uncrop is always possible by reopening the original file.
Yes — cropping works the same way whether a page is a scanned image or real text, since it only changes the visible page boundary, not the page's contents.
No. Cropping happens entirely in your browser — your PDF is never sent to a server.