FreeSign

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Honest comparisons. No bashing.

We don't compete with DocuSign on workflow. We compete on the one thing nobody else offers: never uploading the document. Here's the picture, side by side, with sources.

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FreeSign vs DocuSign

You're considering DocuSign but the document is confidential and you'd rather it never left your machine. DocuSign uploads, stores, and routes — FreeSign doesn't see the file at all.

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FreeSign vs Adobe Acrobat Sign

You're already in the Adobe ecosystem (Reader, Creative Cloud, Document Cloud) and you assume Acrobat Sign is the safer choice. We'll show you when it is — and when FreeSign is.

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Why these two first?

DocuSign and Adobe Acrobat Sign are the two e-signature names enterprise procurement teams ask about first; if you're evaluating FreeSign, odds are one of them is on the other side of the spreadsheet. We picked them because the differences are structural, not cosmetic — this isn't “ours is cheaper.”

What we don't compete on

If you need any of the following, DocuSign or Adobe Sign is the right answer and we'll happily point you there:

What we compete on

Coming next: FreeSign vs Dropbox Sign (HelloSign), FreeSign vs PandaDoc, FreeSign vs Smallpdf eSign, FreeSign vs DigiSigner. If you want one of these prioritised, open an issue or ping us via the MCP server.

Want to try one signature first?

The fastest answer to “does FreeSign actually work” is to sign a test PDF. No account required, full ceremony in under a minute.

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Technical details for advanced users

What "vendor-shutdown survival" means cryptographically

The per-user X.509 leaf cert is embedded in the file, the DigiCert RFC 3161 timestamp is embedded in the CMS, and the OpenTimestamps proof is embedded directly in the CMS as an unsignedAttribute when the calendar pool answered during signing, or fetched from /proof.ots when it didn't (a 30-min cron upgrades the deferred ones). All trust anchors live outside FreeSign's infrastructure.

Standards-conformance for verifiers

Output is PAdES-B-T (CMS PKCS#7 SignedData per RFC 5652, ecdsa-with-SHA256 SignerInfo with absent parameters per RFC 5758 §3.2, ByteRange in the Adobe convention, RFC 3161 TimeStampToken in the SignedData unsignedAttrs). openssl cms -verify, pyHanko sign validate, and Adobe Reader all parse it natively.