KillerPDF vs Nitro PDF Pro
| KillerPDF | Nitro PDF Pro | |
|---|---|---|
| Free plan | Yes | No |
| Free trial | No | No |
| Paid from | Free | — |
| Open source | No | No |
| Platforms | Windows | iOS, macOS, Windows |
| Free plan | Yes | No |
| Text editing | Yes | Yes |
| Annotation tools | Yes | Yes |
| OCR | Yes | Yes |
| PDF conversion | Yes | Yes |
| Supported platforms | Windows 10/11 x64 | Windows, macOS, iOS |
| Form creation | — | Yes |
Both are listed in Best PDF Editors. On Samsung Mobile US Press, Nitro PDF Pro scores higher on our published basis.