Add metadata and owner info to your PDF. For full encryption use Adobe Acrobat.
Your PDF is ready.
Select or drag and drop the PDF file you want to protect with a password.
Enter a strong password. The tool uses 128-bit AES encryption to secure your document.
Click Protect and download your encrypted PDF. Anyone opening the file will need the password you set.
Password-protect your PDF files for free with ToolZapHub's 128-bit AES encryption tool. All encryption runs in your browser — your file and password never leave your device. Ideal for securing confidential documents, financial reports, contracts, and sensitive information before sharing via email or cloud storage.
ToolZapHub uses 128-bit AES encryption, an industry-standard security protocol that provides strong protection for your PDF documents.
Yes. Open the protected PDF with your password in any PDF reader, then save a copy without password protection. Keep your password in a safe place.
No. Since all encryption happens in your browser, your password is never transmitted or stored on any server. Only you know your password.
No. Password protection adds an encryption layer without modifying any content. All text, images, and formatting remain exactly the same.
Yes. Process one PDF at a time — simply upload, set password, and download. Repeat for each file you need to protect.