Solo OS
Solo OS

Universal PDF E-Sign Tool

Upload any PDF, draw your signature, and download a signed copy in seconds.

Local-First & Private by Design. Drafting stays in your browser, and secure checkout is used only when you choose paid unlocks.

What is Universal PDF E-Sign Tool?

A visual PDF e-sign tool lets freelancers and clients stamp signatures directly onto existing contracts without server-side document storage. Solo OS processes uploaded PDFs and signature images in-browser, adds a signer timestamp note, and exports a signed copy ready for countersign flow.

Use This Tool — Free✓ Free to Use · No Sign-up Required

How to Use the Universal PDF E-Sign Tool

  1. 1

    Upload PDF

    Upload the contract or document you want to sign.

  2. 2

    Draw Signature

    Use mouse, touch, or stylus to draw a visual signature.

  3. 3

    Download Signed Copy

    Apply the signature on the last page and download the updated PDF.

  4. 4

    Counter-Sign Flow

    Share it with the other party and ask them to repeat the same /sign process.

Frequently Asked Questions

Ready to use the Universal PDF E-Sign Tool?

No signup required. Start using this tool immediately with a free workflow.

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