Password-protect sensitive PDFs without trusting another upload portal

Sensitive PDFs need locks — not another cloud copy

Payroll, cap tables, and medical forms should leave your machine encrypted. Yet most "protect PDF" buttons mean upload, encrypt remotely, download — creating a duplicate you never asked for.

Free lock tools create the leak they promise to prevent

Password portals follow a risky pattern:

• Encryption keys generated on servers you cannot audit
• Weak default passwords suggested in cleartext UI
• Files retained "for convenience" after download
• No signing workflow after protection without another SaaS

Encrypt and sign PDFs entirely client-side

SnapKit applies passwords and signatures in-browser. The plaintext never transits a remote worker — only the encrypted export leaves your session.

Set a strong document password

Use protect PDF before sharing financial or HR packets.

Add signatures after lock

Chain sign PDF when approvers need non-repudiation on the same file.

**Your files never leave the browser.** SnapKit runs WebAssembly, FFmpeg, and Canvas directly in your RAM — instant speed, zero cloud uploads, and privacy you can actually trust.