Merge, split, rotate, compress, watermark and more — all processing happens in your browser.
Yes, completely free with no file-size limits and no watermarks on output.
No. All processing is done in JavaScript inside your browser. Your files never leave your device.
There is no artificial limit — only your device's available RAM. Most modern laptops handle dozens of PDFs fine.
Browser-side compression removes metadata and re-serialises the PDF structure. Aggressive image resampling requires server-side tools. For heavy compression, the tool still saves you the roundtrip to a server.
This collection of lightweight PDF utilities is designed to handle the everyday document tasks students and engineers run into — merging lecture notes, compressing a report before emailing it, or rearranging pages of a datasheet — without installing heavy software or uploading sensitive files to unknown servers.
The emphasis is on speed and privacy. Wherever possible the work happens directly in your browser, so your documents stay on your device, and there is nothing to sign up for. The tools are meant to be the quickest path from "I have a PDF problem" to "done", with a clean interface that works on both desktop and mobile.
If you work through the technical guides on this site, these utilities pair naturally with study and documentation workflows — keeping your reference material tidy and easy to share. Tell us through the contact page which document tasks you need most and we will expand the toolset accordingly.