Edit, merge, sign & compress PDFs without uploading them.
Every ZorPDF tool runs inside your browser. Your files are processed on your device and never touch a server — turn off your Wi-Fi after the page loads and everything still works.
- bytes uploaded
- 0
- files sent to server
- 0
- processing location
- this device
▚ Processing: 100% in your browser
▚ Server copies of your files: none
▚ Limits, watermarks, sign-ups: none
Pick a tool. Your files stay put.
Edit & sign
Edit PDF
Add text, images, shapes & drawings
▚ runs on your device
Sign PDF
Draw and place your signature
▚ runs on your device
Rotate PDF
Fix sideways or upside-down pages
▚ runs on your device
Page Numbers
Stamp page numbers onto a PDF
▚ runs on your device
Watermark PDF
Stamp text across every page
▚ runs on your device
Crop PDF
Trim margins visually
▚ runs on your device
Organize
Merge PDF
Combine PDFs into one file
▚ runs on your device
Split PDF
Extract pages or split into files
▚ runs on your device
Organize PDF
Reorder pages with thumbnails
▚ runs on your device
Remove Pages
Delete pages from a PDF
▚ runs on your device
Extract Pages
Pull selected pages into a new PDF
▚ runs on your device
Convert
Security
Missing Word or Excel conversion? Those need a full office engine and can't run privately in a browser yet — we'd rather skip a tool than quietly upload your files to provide it.
Most PDF sites upload your document to their servers. We built ZorPDF so that step doesn't exist.
For legal work
Client files carry privilege and confidentiality duties. A contract merged on ZorPDF is never transmitted, stored or logged by anyone — there is no server-side copy to worry about, delete, or disclose.
For finance & health
Statements, tax records and medical documents are exactly the files you shouldn't hand to an unknown server. Local processing means compliance questions about third-party handling simply don't arise.
For everyone
No upload also means no waiting for one. Work starts instantly, big files aren't throttled by your connection, and the tools keep working offline once the page is open.
Fair questions
Are my files really not uploaded?+
Really. Tools on ZorPDF run as WebAssembly and JavaScript inside your browser tab. There is no upload endpoint on this site — the code that would send a file to a server simply doesn't exist. You can verify this in your browser's developer tools (Network tab) while using any tool, or turn off your internet connection after the page loads: everything keeps working.
Is ZorPDF free?+
Yes. Because processing happens on your device, our server costs stay close to zero — so the tools are free, with no page limits, watermarks or accounts.
Is there a file size limit?+
No fixed limit. The practical limit is your device's memory, since your own browser does the work. Typical documents — even few-hundred-page contracts and scans — process in seconds.
Can I use ZorPDF for confidential documents?+
That's exactly what it's built for. Contracts, financial records, medical documents: they never leave your device, so there is no server copy, no retention window, and no third party to trust. Your files are as private as your own computer.
Which browsers work?+
Any modern browser: Chrome, Firefox, Safari and Edge, on desktop and mobile. No installation or extension needed.