Native PDF signatures
For internal documents, your operating system may already do this.
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sovereigntyWorth asking before buying anything: a large share of what companies route through DocuSign is internal — a policy acknowledgement, an expense approval, an NDA between two employees. macOS Preview, Adobe Acrobat Reader and most PDF tools apply a signature with a certificate at no cost, and for internal documents that is frequently sufficient. This is not a product recommendation; it is a scope check. E-signature platforms earn their price on external, contested, high-value agreements — not on getting a colleague to initial a form.
SOURCE-AVAILABLEVaries (built into operating systems and PDF readers)SELF-HOSTLOCAL-FIRST
LicenseVaries (built into operating systems and PDF readers)
PricingFree — already present on most machines.
Open sourceNo
Self-hostableYes
Local-first dataYes
What it does well
- +No cost and no new system to run
- +Genuinely sufficient for internal, uncontested documents
- +Nothing leaves the device
- +Available on essentially every machine already
Where it falls short
- −No workflow, routing, reminders or completion tracking
- −Audit trail is far weaker than a signing platform's
- −Not appropriate for high-value external contracts
- −Legal weight varies by jurisdiction and document type
Native PDF signatures as an alternative to
Where Native PDF signatures shows up in our comparisons, and how it ranked.
Native PDF signatures head-to-head
Straight comparisons against the tools people weigh it against.