callas pdfToolbox SDK vs Spire.PDF
callas pdfToolbox SDK
callassoftware.comSpire.PDF
e-iceblue.comSide by side
| Figure | callas pdfToolbox SDK | Spire.PDF |
|---|---|---|
| Price from | — | Free |
| Free plan | — | Yes |
| Free trial | Yes | Yes |
| Open source | — | — |
| Web | — | Yes |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | Yes | Yes |
| iOS | — | Yes |
| Android | — | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 1 | 3 |
| Spec score · PDF SDKs | 8.6 (#1) | 7.9 (#15) |
| Headquarters | Berlin, Germany | The vendor's contact page lists its address in Chengdu, Sichuan, China. |
Plans
callas pdfToolbox SDK
- pdfToolbox Server, CLI, and SDK 16€5,000, paid once
Spire.PDF
- Free EditionFree
- Pro Edition — Developer Small Business, with free support$999, paid once
- Pro Edition — Developer Small Business, with paid support$1,498, paid once
In their own words
callas pdfToolbox SDK
callas pdfToolbox SDK has no write-up on Specifiction yet; its figures are above.