Mozilla PDF.js vs Preview
| Mozilla PDF.js | Preview | |
|---|---|---|
| Free plan | Yes | No |
| Free trial | No | No |
| Paid from | Free | — |
| Open source | No | No |
| Platforms | api, extension, Linux, self-hosted, Web | — |
| Annotation tools | Yes | Yes |
| Form filling | Yes | Yes |
| Platform support | cross-platform | desktop |
| Free plan | — | Yes |
| Offline access | — | Yes |
Both are listed in Best PDF Readers. On The Geeks Club, Mozilla PDF.js scores higher on our published basis.