✂️ PDF Tools
Crop PDF Margins — Free & Private
Trim wide white borders off a PDF so the content fills the page — great for tightening scans, slides, and screenshots before printing. Set how much to cut from each side and download, all in your browser.
✓ Free forever✓ No upload✓ No signup✓ In your browser
Quick answer: To crop a PDF, drop your file, set how much to trim from the top, right, bottom, and left as a percentage of each page, and click Crop — the crop box is applied to every page and saved into the downloaded PDF, all in your browser.
How to Crop a PDF
1
Add Your PDF
Drop the PDF onto the tool, or click to browse and select it.
2
Set the Trim
Use the sliders to choose how much to cut from each side as a percentage.
3
Click Crop
The crop box is applied to every page instantly in your browser.
4
Download
Download the cropped PDF — margins gone, content front and center.
Why Use Convertlo?
- 🔒 100% Private — the PDF never leaves your browser
- 🆓 Free forever — no account, no watermark, no limits
- ✂️ Per-side control — trim each edge independently
- 📐 Percentage based — one setting works across mixed page sizes
- 📄 Reversible in readers — cropping sets the crop box, content is retained
- 📱 Works on mobile — any modern browser, any device
Features
100% Private
No server, no upload — your PDF stays on your device.
Four Sides
Independent top, right, bottom, and left trim.
Percentage
Scales cleanly across A4, Letter, and mixed sizes.
Instant
Crops every page in seconds.
No Limit
No page or file-size cap in a session.
Mobile-Ready
Works on iPhone, Android, tablet, and desktop.
Frequently Asked Questions
Yes — completely free, no limits, no watermarks, and no account required. Convertlo runs entirely in your browser using open-source PDF-lib.
You set how much to trim from each side as a percentage of that page's width or height. Because it is relative, the same setting crops a proportional margin whether the page is A4, Letter, or a mix of sizes.
No. Cropping happens locally in your browser. Your files never leave your device, so there is no file-size limit — it is all local processing.
Cropping sets the page's visible crop box, so hidden margin content is not shown or printed. The underlying objects remain in the file, which some editors can restore — for a hard removal, print the cropped PDF back to PDF.
Common reasons: removing the wide white borders of a scan, tightening slide exports so they fill the page, or trimming screenshots so the useful area is centered for printing.
This tool applies the same trim to every page, which suits documents with a consistent layout. For a single odd page, crop the whole file, then use Organize PDF to swap that page out.