Skill comparison
Use this as a shortlist, then open the skill detail page before adopting.
Decision summary
Strongest overall
Jsignpdf
Prototype with this skill first; keep a fallback candidate ready.
Fastest prototype
Jsignpdf
Best first install candidate based on install readiness and adoption.
Freshest repo
Jsignpdf
Most recent maintenance signal among this shortlist.
| Signal | Jsignpdf Cross-platform PDF digital signing tool. JavaFX desktop UI with drag-to-place visible signatures, PKCS#11/PKCS#12 keystores, RFC 3161 timestamping, OCSP/CRL long-term validation, and a scriptable CLI. |
|---|---|
| Quality | 72/100 Strong |
| Decision verdict | 71/100 Prototype first Prototype with this skill first; keep a fallback candidate ready. |
| Adoption | 419 stars Verified outcomes are shown on each skill page |
| Freshness | Jun 20, 2026 |
| Use-case fit | |
| Workflow fit | |
| Platform hints | Java, PDF, Claude Code |
| Warnings | No OpenAgentSkill engagement data yet |
| Best for | Document processing workflows · Claude Code teams · builders willing to evaluate younger projects |
| Not ideal for | teams that need a vendor-supported SLA · high-compliance environments without internal security review |
| OpenAgentSkill engagement | 0 views 0 install copies |
| Install | $ npx skills add intoolswetrust/jsignpdf |