Multi-Signature Workflows
Apr 5, 2026 · 3 views
Multiple Signatures on One PDF
OneSigner supports applying multiple digital signatures to a single PDF. This is useful for workflows requiring multiple approvals (e.g., Prepared By, Reviewed By, Approved By).
How It Works
- Each signature is applied incrementally — preserving all previous signatures
- Multiple signatures can use different certificates (even from different USB tokens)
- Each signature can be placed at a different location using text patterns
Setup
- In the signing profile, add multiple Sign configurations
- For each, specify a different certificate and text pattern:
- Sign 1: Certificate A, pattern "Người lập" (Prepared By)
- Sign 2: Certificate B, pattern "Người duyệt" (Approved By)
- Enable the profile — OneSigner will apply all signatures in order
Important Notes
- All USB tokens must be plugged in simultaneously
- PINs must be configured for each certificate
- Signatures are applied sequentially — PDF integrity is maintained
- Adobe Acrobat will show all signatures as valid