π
PDF Password Protection
and Lock Guide
Secure your private PDF folders, contracts, or CVs. Your document never leaves your machineβencryption is completed 100% locally.
Open Tool Now
β
100% Free
π Local Sandbox
π‘οΈ Zero Leak Risk
π PDF Locker
How It Works β Step-by-Step
1
Upload PDF File
Drag and drop the PDF you want to protect or click inside the upload box to browse files.
2
Choose a Password
Type your desired password in the text box. Note that since this is local security, passwords cannot be recovered if forgotten.
3
Apply Lock Configuration
Click the [Lock PDF] button. The browser client encrypts and structures the new PDF metadata instantly.
4
Save Protected PDF
The locked file is downloaded automatically. Open the file to confirm it prompts for the password.
π‘ Security Recommendations
- No Recoveries: Zero-knowledge architecture means passwords are not stored on our server. Keep a safe record of your passphrase.
- Password Strength: Avoid short numeric passwords for highly confidential files. Combine letters, numbers, and symbols.
Frequently Asked Questions
π FAQ
- Does my file upload to a server? No. EasySolve uses client-side rendering with `pdf-lib` so all encryption happens in the local sandbox.
- Will it affect file size? The file size changes by less than 2KB of security metadata. High image resolution or text features are unmodified.