Tool workflow guide
Browser-safe FAQ
Practical answers for privacy, account access, output use, and day-to-day workflow decisions.
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BizSmartTools Secure PDF Utility
Password-protect PDF documents locally in the browser with pdf-lib normalization, AES-256 encryption, password validation, and secure download.
🔒 100% Private Local Browser Processing: Your files and inputs never leave your device. All calculations, conversions, and asset compressions run entirely inside this tab.
Password Strength
Weak
Use 8+ characters with uppercase, lowercase, numbers, and symbols for stronger protection.
100% local password security
Your PDF and password never leave the browser. Encryption runs locally with Web Crypto-backed PDF protection and a standard PDF password prompt.
Original Size
0 B
Locked PDF Size
0 B
Pages
0
The PDF is normalized with pdf-lib, then password-protected as an encrypted PDF.
Upload a PDF and enter a password to lock it locally.
Copying, modifying, assembly, and content extraction permissions are restricted in the locked PDF.
