Adobe PDF Services API vs CASO Comply
| Adobe PDF Services API | CASO Comply | |
|---|---|---|
| Free plan | Yes | No |
| Free trial | No | No |
| Paid from | Free | — |
| Open source | No | No |
| Platforms | Web | api, self-hosted, Web |
| Free plan | Yes | No |
| API access | Yes | Yes |
| PDF tagging tools | — | Yes |
| Reading order tools | — | Yes |
| Alternative-text tools | — | Yes |
| PDF/UA support | — | Yes |
| OCR support | — | Yes |
| Batch processing | — | Yes |
Both are listed in Best PDF Accessibility Software. On Freedom251, Adobe PDF Services API scores higher on our published basis.