How to Crop PDF Pages and Remove Unwanted Margins
Trim the same margins from every page of a PDF, right in your browser.
Scanned documents come with thick black borders, reports carry wide empty margins, and some PDFs keep a header or footer you do not need. Cropping trims those edges away so the content fills the page — and when every page gets the same trim, the whole document stays consistent.
Add your PDF
Drop a PDF onto Crop PDF. Every page loads at once, and nothing is uploaded anywhere — the file stays in your browser from start to finish.
Set the margins in percent
Enter how much to trim from the top, right, bottom, and left, each as a percentage of the page size. Percentages matter: the same 10% means the same visual trim whether a page is A4 or a small receipt scan. Each side can go up to 45%, and at least 10% of each page dimension must remain, so you cannot accidentally crop a page down to nothing.
One setting for every page
The margins you set apply uniformly to all pages. That is the point: a scanned book or a 40-page report comes out with identical framing on every page, instead of a mix of wide and tight pages. The trade-off is real, though — if one page genuinely needs a different trim, crop that page separately or split it out first.
Download and check the result
Click Crop PDF and download the cropped document, then open it and flip through a few pages. Text, images, and vectors are untouched — only the visible area shrinks — so a quick spot-check of the first, a middle, and the last page is enough to confirm the trim is right.
Cropping hides, it does not delete
This is the part most people get wrong. Cropping changes the visible area of each page; the content outside the crop is still inside the file. That means cropping is NOT redaction: never use it to hide sensitive text, signatures, or personal details, because anyone can restore the full page. For content that must truly go, you need real redaction, which this tool deliberately does not pretend to offer.
Rotated pages stay correct
Pages that were scanned sideways or rotated in the file are handled correctly: the crop is computed from each page current visible area, so a landscape page and a portrait page in the same document both come out trimmed the way you expect.
When cropping is not the right fix
If pages themselves need to go, use Split PDF or Organize PDF instead. If the file is too large, crop first and then compress — trimming empty margins before compressing gives the compressor less blank space to store. And if the content inside the margins is the problem rather than the margins, cropping will not help at all.
Quick tips
- Start with a small trim like 5% on each side and increase it — an aggressive first cut is the most common way to lose a page number or a footnote.
- Check the first and last pages before downloading: scanners often leave a thicker border on the first page than on the rest.
- Crop before you compress. Removing blank margins first means a smaller file after compression, for free.
- Your original file is never modified. The download is a new file, so you can always go back and try different margins.
- Cropping will not remove headers, footers, or watermarks that sit inside the visible area — it only trims the edges.