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Mar 6, 2024 · Acrobat 7.0 And Later (PDF 1.6) encrypts the document using the AES encryption algorithm with a 128-bit key size. Acrobat X And Later (PDF 1.7) encrypts the document using 256-bit AES. To apply 256-bit AES encryption to documents created in Acrobat 8 and 9, select Acrobat X And Later.
Encrypt and protect PDF with a password to safeguard sensitive information. Secure your PDF files online, with ease and without registration.
Password protect PDFs online with trusted encryption. Try Acrobat online services to password protect a PDF for free!
Adobe Acrobat. Password protect a PDF. Select a PDF file, then add a password to protect your file. Select a file. Your files will be securely handled by Adobe servers and deleted unless you sign in to save them. Files are secured using HTTPS w/TLS 1.2 and stored using AES-256 encryption.
Select a PDF by clicking 'Choose file' button or simply drag the file to the Encrypt PDF page. Select an encryption method, you can add open password or owner password with copying and printing restriction. Click 'Start Conversion' button to start the online encryption. Download the encrypted PDF file after processing.
Input your top-secret password, and click ‘Encrypt PDF.’. Download your new password-protected file! Encrypt any PDF file with password. PROTECT MY FILE. If you’re wondering how to password protect a file that isn’t in PDF format, we’ve got you covered for that too.
Protect PDF files by adding a password and encrypt it. Drop Files here. Choose File. Start. Add sample file. Settings. Optional Settings. Rasterize: Enable Rasterize. Start. Info: 300,000+ users. 18,000+ users. Stay connected: Bookmark. Like 84k. share2k. tweet. How do I add a password to a PDF? Upload your PDF file.
