Trusted Signatures provides the fastest, most affordable, secure PDF signatures on the internet.
As low as $0.001 per signature — pay-as-you-go; no subscriptions, no surprises.
Sending 500 invoices this month? It’s only $15.85 or less than 4 cents per signature to ensure they are tamper proof.
Feature Comparison
| Feature | Trusted Signatures | DocuSign / SignNow | Adobe E-Sign |
|---|---|---|---|
| Per-signature pricing | ✅ Yes (no subs.) | ❌ Subscription | ✅ Yes |
| CLI + API support | ✅ Unified interface | API only | API only |
| Cert/key managed for you | ✅ Yes | ✅ Yes | ✅ Yes |
| HSM-based key storage | ✅ Yes | ✅ Yes | ✅ Yes |
| Cost per signature | As low as $0.001 | $1.50 | $1.49 |
| Keeps a copy of your PDF | Never | Yes | Yes |
What Trusted Signatures Does for You
Get the green checkmark in Adobe Acrobat that proves your documents are authentic and unchanged since signing.
Results
Adobe Acrobat Green Check Verification
Your PDF documents display the trusted green checkmark in Adobe Acrobat, providing instant visual proof of authenticity and document integrity. Essential for:
- Legal Contracts
- Regulatory Compliance
- Financial Reports
- Business Documents
Easy
Affordable Enterprise PDF Digital Signatures
Digital signing doesn’t have to be complicated or expensive.
- Pay-as-you-go
- Automated CLI integration
- Managed certificate security
- Scalable pricing
Secure
Enterprise-Grade Security & Compliance
Bank-level security with HSM protection, FIPS 140-3 Level 3 compliant HSM, and zero-trust architecture.
- Documents stay on your servers
- Complete audit trails
- HIPAA compiant
- Enterprise-grade infrastructure without the enterprise price
Want a 
?
Trusted Signatures provides the fastest, most affordable, secure PDF signatures on the internet.