Crop PDF Margins Privately, in Your Browser
Trim white margins, scanner edges, and borders from PDF pages without uploading a single byte. Free, no signup, no watermark, local processing.
How to Crop a PDF
Wide margins waste screen space on tablets, and scans often pick up black edges or stray borders that look messy in print. GoPDFConverter trims them off in seconds, directly in your browser, with no uploads, no installs, and no cost.
- Open the Crop PDF tool and drop your file, or click Choose a PDF.
- Enter how much to trim from the top, bottom, left, and right edges, or tick Same margin on all sides and enter one value. Pick points, inches, or millimeters.
- Leave the page range blank to crop every page, or enter pages like 1-3,5 to crop only some.
- Click Crop PDF & Download to save the trimmed document.
Why Crop PDFs in Your Browser
Cropping is a small adjustment, but the whole document has to be processed to make it. Some services upload the PDF to a processing server. GoPDFConverter instead uses PDF-LIB in browser memory and does not send selected document bytes to GoPDFConverter for cropping. Normal website and analytics requests still occur.
The crop adjusts each page's crop box rather than re-rendering the content, so the process is near-instant. Text, images, fonts, and vector graphics inside the new page area are untouched, and the file size stays essentially the same.
Common Crop PDF Use Cases
- Scanner edges: remove the black borders flatbed scanners leave around the page.
- E-readers and tablets: trim wide margins so the text fills the screen instead of shrinking to fit empty space.
- Print preparation: tighten slide decks and handouts so the content sits where you want it on paper.
- Scanned receipts: cut away the background around a small receipt scanned on a full-size bed.
- Mixed sources: even out margins before merging pages from different documents.
Cropping Is Not Redaction
One honest warning before you crop: cropping a PDF hides content, it does not delete it. The crop box tells PDF viewers which part of the page to display, but everything outside it stays inside the file. Anyone with a PDF editor can reset the crop box and see the trimmed area again, and search or copy-paste can still reach the hidden text.
So if your goal is to remove sensitive information, a name, an account number, a margin note, do not rely on cropping. Use a dedicated redaction tool that actually strips the underlying content from the file, then run the output through the local PDF redaction checker. Cropping is the right tool for layout and presentation, not for privacy inside the document itself.