🔒
Protect PDF
Add password protection to your PDF — encrypted on secure servers via HTTPS. Your password is transmitted via encrypted HTTPS only when needed.
📄
Drop PDF files here
or click to browse
🔒 Secure HTTPS upload
✅
Add password protection to your PDF — encrypted on secure servers via HTTPS. Your password is transmitted via encrypted HTTPS only when needed.
Select the document you want to password-protect.
Enter a strong password. This will be required to open the PDF.
Your protected file is ready — encrypted on secure servers via HTTPS.
Sensitive documents deserve encryption. Whether you're sharing financial reports, personal records, legal contracts, or confidential business plans, adding a password ensures only authorized recipients can open your PDF.
PDFably's protection tool is uniquely secure because the encryption is performed on secure servers via HTTPS. Your password is transmitted via encrypted HTTPS — it is securely transmitted only for the encryption operation and not stored. PDFably uses HTTPS encryption to protect your files in transit and processes them securely on isolated servers.
After protection, anyone who tries to open the PDF will be prompted for the password. Without it, the document's contents remain inaccessible. Make sure to share your password through a different channel than the PDF itself — send the file by email and the password by text message, for example.
PDFably applies PDF standard encryption using the pdf-lib library. This sets both a user password (required to open) and an owner password for the document.
Yes. Open the protected PDF with your password, then use any PDF tool to save it without protection. You'll need to remember your password — PDFably doesn't store it.
No. Your password is transmitted only via encrypted HTTPS and is not stored after processing.
Use at least 8 characters with a mix of letters, numbers, and symbols. Avoid common words or personal information. The stronger your password, the harder it is to crack.
Yes. PDFably works in any modern mobile browser. Upload your PDF, enter a password, and download the encrypted file — all on your phone.