Skill comparison
Compare agent skills before installing.
Comparing 4 skills
Use this as a shortlist, then open the skill detail page before adopting.
Decision summary
Sumatrapdf is the strongest overall pick here because it has a 100/100 readiness score and fits Document processing.
Strongest overall
Sumatrapdf
Use this as a leading candidate, then validate the README and install path in your own agent stack.
Fastest prototype
Sumatrapdf
Best first install candidate based on install readiness and adoption.
Freshest repo
Sioyek
Most recent maintenance signal among this shortlist.
| Signal | PdfViewer Simple Android PDF viewer based on pdf.js and content providers. The app doesn't require any permissions. The PDF stream is fed into the sandboxed WebView without giving it access to content or files. CSP is used to enforce that the JavaScript and styling properties within the WebView are entirely static. | Sumatrapdf SumatraPDF reader | React Pdf Display PDFs in your React app as easily as if they were images. | Sioyek Sioyek is a PDF viewer with a focus on textbooks and research papers |
|---|---|---|---|---|
| Quality | 81/100 Strong | 100/100 Excellent | 100/100 Excellent | 100/100 Excellent |
| Decision verdict | 96/100 Production-ready Use this as a leading candidate, then validate the README and install path in your own agent stack. | 100/100 Production-ready Use this as a leading candidate, then validate the README and install path in your own agent stack. | 100/100 Production-ready Use this as a leading candidate, then validate the README and install path in your own agent stack. | 100/100 Production-ready Use this as a leading candidate, then validate the README and install path in your own agent stack. |
| Adoption | 979 stars Verified outcomes are shown on each skill page | 17K stars Verified outcomes are shown on each skill page | 11K stars Verified outcomes are shown on each skill page | 9.8K stars Verified outcomes are shown on each skill page |
| Freshness | Jul 1, 2026 | Jun 20, 2026 | Jul 29, 2026 | Aug 5, 2026 |
| Use-case fit | ||||
| Workflow fit | ||||
| Platform hints | Kotlin, PDF, Claude Code | C, PDF, Claude Code | TypeScript, PDF, Claude Code | C, PDF, Claude Code |
| Warnings | No major risk signals from current metadata | No OpenAgentSkill engagement data yet | No OpenAgentSkill engagement data yet | No OpenAgentSkill engagement data yet |
| Best for | Document processing workflows · Claude Code teams · teams that value GitHub adoption signals | Document processing workflows · Claude Code teams · teams that value GitHub adoption signals | Document processing workflows · Claude Code teams · teams that value GitHub adoption signals | RAG and knowledge workflows · Claude Code teams · teams that value GitHub adoption signals |
| Not ideal for | teams that need a vendor-supported SLA · high-compliance environments without internal security review | teams that need a vendor-supported SLA · high-compliance environments without internal security review | teams that need a vendor-supported SLA · high-compliance environments without internal security review | teams that need a vendor-supported SLA · high-compliance environments without internal security review |
| OpenAgentSkill engagement | 13 views 0 install copies | 0 views 0 install copies | 0 views 0 install copies | 0 views 0 install copies |
| Install | $ npx skills add GrapheneOS/PdfViewer | $ npx skills add sumatrapdfreader/sumatrapdf | $ npx skills add wojtekmaj/react-pdf | $ npx skills add ahrm/sioyek |