ToolKitSphereUnlock PDF
Files never leave your browserRemove a known password from an RC4-encrypted PDF.
Drop a file here, or click to upload
Accepts password-protected PDFs
Upload a password-protected PDF
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Combine multiple PDFs into one file, in the order you choose.
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Shrink PDF file size with Low/Medium/High presets and see real savings.
Edit PDF
Add text, shapes, and freehand marks directly on rendered PDF pages.
Protect PDF
Password-protect a PDF with real RC4-128 encryption.
Remove password protection from a PDF you already have the password for. This decrypts PDFs using the standard RC4 40/128-bit security handler; AES-encrypted files aren't supported yet.
Features
- 100% Client-Side Processing: Unlock PDF runs entirely in your browser for absolute privacy.
- Zero File Uploads: Your documents never touch external servers or third-party storage.
- High-Quality Output: Preserves original layout, typography, and image resolution.
- Cross-Platform: Compatible with Windows, macOS, Linux, Android, and iOS.
- No Registration Required: Free unlimited usage with no credit card or account needed.
Why use this unlock pdf?
- Process sensitive financial, legal, and medical documents with peace of mind.
- Instant workflow execution with zero server processing delay.
- No watermark added to your output files.
- Simple and clean user interface designed for efficiency.
Frequently asked questions
Is my file uploaded when using Unlock PDF?
No. All operations for Unlock PDF take place locally in your web browser. No files are uploaded to our servers.
Is Unlock PDF free to use?
Yes, Unlock PDF is 100% free with unlimited usage and no hidden fees or account registration.
Does Unlock PDF work on mobile devices?
Yes! You can use Unlock PDF on smartphone and tablet browsers without installing any mobile app.