Crop PDF
Trim margins and unwanted edges from every page — drag the crop box or enter exact measurements.
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How to Crop a PDF Online
Wide white margins, scanner shadows, printer crop marks, and headers you never wanted can make a PDF harder to read than it needs to be — especially on a phone, tablet, or e-reader where every millimeter of screen counts. Cropping trims those edges away so the content you care about fills the page. This free PDF cropper lets you draw the crop area visually or type exact measurements, then applies it to every page of your document in one step, right inside your browser.
- 1
Upload your PDF
Drop a file onto the page or browse for it. The first page opens in the crop editor.
- 2
Draw the crop area
Drag the edges or corners of the crop box, or move the whole box to the area you want.
- 3
Fine-tune the margins
Type exact values in millimeters, inches, or points for a precise, repeatable crop.
- 4
Crop and download
The same crop is applied to every page and your trimmed PDF downloads instantly.
Stays on your device
Cropping happens in your browser. Your PDF is never uploaded to a server.
All pages at once
Define the crop once and it is applied consistently across the entire document.
No quality loss
Pages are not re-rendered, so text stays sharp, selectable, and searchable.
Common reasons to crop a PDF
Scanned books and articles are the classic case: a flatbed scanner captures the whole glass, leaving dark borders and a shadow along the spine that distract from the text. Lecture slides exported to PDF often carry wide frames, and academic papers have generous margins that shrink the text on a small screen. Designers crop away printer marks and bleed before sending a proof, and anyone sharing a screenshot-style PDF can trim off browser bars, timestamps, or other clutter around the part that matters.
Visual cropping vs. exact measurements
Dragging the crop box over the page preview is the fastest way to get a good result — you can see exactly what will stay and what will go. When precision matters, switch to the margin fields and enter values in millimeters, inches, or points. Exact numbers are perfect for repeatable jobs, such as trimming the same 15 mm border from a batch of scans, or matching a document to a specific print size.
How the crop is applied across pages
You set the crop on the first page, and the same margins are trimmed from every page in the file. Because the margins are measured from each page's own edges, the crop stays consistent even when some pages are landscape or were saved rotated. This makes it ideal for documents with a uniform layout — books, reports, slides, and multi-page scans — where every page has the same unwanted border.
Cropping for print and e-readers
On an e-reader or phone, removing white margins can make text noticeably larger and easier to read without zooming on every page. For printing, keep in mind that the cropped page becomes smaller than a standard sheet; most print dialogs offer a "fit to page" option that scales it back up to fill the paper, which gives you larger, cleaner printed text.
Pro tip: leave a small breathing space around the content rather than cropping right up to the text. A few millimeters of margin keeps pages looking clean and protects against slight differences in position from one scanned page to the next.
Frequently Asked Questions
Does cropping permanently delete the hidden parts of the page?
No. Like most PDF editors, this tool sets each page's crop box, which controls the visible area. The content outside the crop is hidden by PDF viewers and printers but still exists inside the file. Never use cropping to remove sensitive information — use a dedicated redaction tool for that.
Will cropping reduce the file size?
Usually not by much, because the hidden content is kept in the file. If you need a smaller file, crop first and then run the result through our Compress PDF tool.
Can I crop each page differently?
This tool applies the same margins to every page, which is ideal for scanned books, slides, and reports with a consistent layout. To crop a single page differently, extract it into its own file first, crop it, and merge the pages back together.
What happens if my pages are different sizes?
The margins you set are trimmed from the edges of every page. If a page is too small for those margins to leave a usable area, that page is left unchanged and you are told how many pages were skipped.
Does cropping lower the quality of my PDF?
No. Cropping only changes which part of each page is shown. Text, images, and vector graphics are untouched, so the result is exactly as sharp as the original.
Is it safe to crop confidential documents here?
Yes. The file is processed locally in your browser with JavaScript and is never sent to our servers, so your document stays on your device the entire time.