PDF Tools
Crop PDF
Trim margins off every page of a PDF (in millimetres).
- Free to use
- No sign-up
- Instant download
Your file is processed securely and automatically deleted from our servers within 1 hour.
Working on it…
Processing your file — the download starts automatically when it’s ready.
Your file downloads automatically
Choose your file above and run the tool — the result is sent straight to your browser.
About this tool
Trim wide margins and empty borders so the content fills more of each sheet. The same crop is applied to every sheet, giving the whole document a consistent, tidier look.
How to use it
- Upload your PDF.
- Set how much to trim from each edge.
- Run the tool and download the trimmed copy.
When it helps
- Scans with thick grey or white borders
- Slides exported with large empty space around them
- Reading on a phone or tablet, where every millimetre counts
- Preparing sheets for printing on a different paper size
Cropping vs resizing
Cropping hides the outer area of each sheet. Resizing changes the sheet's dimensions or scales its content. They solve different problems, so choose cropping when the issue is wasted space around the content.
Check before you share
Trim too much and you may cut off headers, footers, numbering or text close to the edge. Review the result before sending or printing it.
Good to know
Cropping changes the visible area; content outside it may still exist inside the file. If you need to remove sensitive information permanently, use a proper redaction tool instead. Uploaded files are deleted from our server shortly after processing.
A worked example
An exported slide deck has thick white bands on every side, making the slides look tiny on a phone. Trimming 15 mm from each edge makes the content fill the screen and much easier to read.
Choosing the margins
- Values are in millimetres; an A4 sheet is 210 × 297 mm.
- Start small, around 5–10 mm, and increase if needed.
- Use different values per side when the empty space is uneven, for example a large top border from a scanner.
- Leave a little breathing room so text does not touch the edge.
Before printing
Printers cannot print right to the edge of the paper. If you plan to print the result, keep at least 5 mm of margin and check the print preview.
Trim vs redact
Cropping is about appearance. Content outside the visible area can still exist inside the file, so it is not suitable for hiding personal or confidential information — use a proper redaction tool for that.
Troubleshooting
If content is cut off, reduce the values and run the tool again on your original. Locked files must be unlocked first.
Related tools
- Rotate PDF – fix orientation
- Add Page Numbers – number the trimmed document
- Compare PDF – check text between versions
Step by step: trimming a scanned book
- Measure the empty border on a typical sheet.
- Enter slightly smaller values for each side.
- Run the tool and check sheets near the start, middle and end.
- Adjust and run again on the original if needed.