Protect PDF
Encrypt your PDF with a strong security password. With PDFsHub your documents are never uploaded to a server; they are processed directly in your browser with the highest level of privacy.
How to use (3 easy steps)
Choose your file
Drag and drop your files into the upload area or click the select button.
Adjust the options
Pick the settings the tool offers, if there are any.
Process and download
Click the start button and download your result within seconds.
100% secure and private
Your files never leave your device. It even works if your connection drops.
Instant results
No upload or download waiting. It runs at the full speed of your browser.
Completely free
No sign-up or credit card needed. Use it as much as you like.
Frequently asked questions
Is this tool really free?
Yes. PDFsHub is completely free, with no sign-up, subscription or hidden fees.
Are my files uploaded to a server?
No. All processing happens in your browser, so your files are never sent to the internet.
Is there a file size or file count limit?
No fixed limit. Because everything runs on your device, the only limit is your device memory.