Every PDF tool you need, right in your browser
Edit text, convert to Word, compress, merge, split, sign, redact and protect your PDFs, processed locally on your device, so your documents stay yours.
Drop your PDF here to start
or pick a file from your device
Files stay private: PDFs and images are edited in your browser.
Pick a tool, drop a file, done
Every tool opens directly in the editor with your document, no sign-up wall, no upload queue.
Edit & annotate
Convert & OCR
Organize & optimize
Protect & sign
What actually happens to your file
Three claims you can check yourself, measured on real documents.
Your files never leave your device
Every tool, from OCR to compression to redaction, runs locally in your browser on WebAssembly engines. Nothing is uploaded unless you choose to save to the cloud.
Real results, measured
On a real 208-page, 93 MB document, our compressor produced a 63 MB file at the recommended preset and 2 MB at extreme. Measured on actual files, never promised.
Security that means it
Redaction actually deletes content, signatures come with a SHA-256 audit certificate, and protection uses AES-256 encryption. No cosmetic fixes.
A full PDF editor that feels instant
The engine runs on your device, so tools open where you work and finish when you click, not after a round-trip to a server.
The whole editor, one ribbon
Pick a tool and it opens on the page you are already reading, with your document in place. No dialog queue, no upload step, no reload.
AES-256, applied on your device
The password and the permission flags are written into the file locally, so the key never travels anywhere.
Compression you can measure
Three presets, one honest trade-off. The figures below are what our compressor returned on a real 208-page, 93 MB file.
Pages, dragged into place
Thumbnails for the whole document: drag to reorder, rotate the scans that came in sideways, drop a blank page where you need one.
Done in three steps
Upload your PDF
Drop the file above, it is read locally in your browser, never uploaded to a server.
Use the tool
The editor opens with the right tool selected. Make your changes in a couple of clicks.
Download the result
Save the finished PDF straight to your device. No account, no watermark, no wait.
Frequently asked questions
Yes. Every tool on this page works for free, without an account. Because the processing runs in your browser, there is no server cost to pass on to you.
No. Files are read and processed locally on your device with WebAssembly engines. The only time a file leaves your device is if you explicitly save it to your windpdf cloud drive.
No. Everything runs in your web browser, desktop or mobile. Just drop a PDF and start.
There is no server-imposed limit, since nothing is uploaded. Very large files are bounded only by your device's memory.
Your next PDF task is one drop away
Free, private, and already open in your browser.
Start now, it's free