Skill comparison
Use this as a shortlist, then open the skill detail page before adopting.
Decision summary
Strongest overall
OCRmyPDF
Use this as a leading candidate, then validate the README and install path in your own agent stack.
Fastest prototype
OCRmyPDF
Best first install candidate based on install readiness and adoption.
Freshest repo
Sumatrapdf
Most recent maintenance signal among this shortlist.
| Signal | Pdf Diff A tool for visualizing differences between two pdf files. | Pdfcpu PDF tooling for Go and the command line. | OCRmyPDF OCRmyPDF adds an OCR text layer to scanned PDF files, allowing them to be searched | Sumatrapdf SumatraPDF reader |
|---|---|---|---|---|
| Quality | 56/100 Promising | 100/100 Excellent | 100/100 Excellent | 100/100 Excellent |
| Decision verdict | 58/100 Prototype first Prototype with this skill first; keep a fallback candidate ready. | 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 | 865 stars Verified outcomes are shown on each skill page | 8.7K stars Verified outcomes are shown on each skill page | 34K stars Verified outcomes are shown on each skill page |
| 17K stars Verified outcomes are shown on each skill page |
| Freshness | May 8, 2023 | Jun 9, 2026 | Jun 12, 2026 | Jun 20, 2026 |
| Use-case fit |
| Workflow fit |
| Platform hints | Go, PDF, Claude Code | Go, PDF, Claude Code | Python, PDF, Claude Code | C, PDF, Claude Code |
| Warnings | Repository looks stale · No OpenAgentSkill engagement data yet | 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 | Document processing workflows · Claude Code teams · teams that value GitHub adoption signals |
| Not ideal for | teams that require actively maintained dependencies · production agents without a repository 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 | 0 views 0 install copies | 0 views 0 install copies | 0 views 0 install copies | 0 views 0 install copies |
| Install | $ npx skills add serhack/pdf-diff | $ npx skills add pdfcpu/pdfcpu | $ npx skills add ocrmypdf/OCRmyPDF | $ npx skills add sumatrapdfreader/sumatrapdf |