callas pdfToolbox SDK vs IronPDF
callas pdfToolbox SDK
callassoftware.comIronPDF
ironpdf.comSide by side
| Figure | callas pdfToolbox SDK | IronPDF |
|---|---|---|
| Price from | — | — |
| Free plan | — | — |
| Free trial | Yes | Yes |
| Open source | — | — |
| Web | — | Yes |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | Yes | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 1 | 5 |
| Spec score · PDF SDKs | 8.6 (#1) | 8.3 (#6) |
| Company | callas software says it is Berlin-based, focuses on PDF, and was founded in October 1995. | Iron Software says it was founded in 2015 and is based in the United States. |
| Founded | 1995 | 2015 |
| Headquarters | Berlin, Germany | The IronPDF brochure lists Iron Software at 205 N. Michigan Ave., Chicago, IL 60601, USA. |
| Trial | All pdfToolbox variants are available with a free 14-day trial. | The 30-day trial is described as fully functional, without watermarks, and available without a credit card. |
Plans
callas pdfToolbox SDK
- pdfToolbox Server, CLI, and SDK 16€5,000, paid once
IronPDF
- Lite$999, paid once
- Plus$1,499, paid once
- Professional$2,399, paid once
- Unlimited$4,799, paid once
- EnterprisePriced on request
In their own words
callas pdfToolbox SDK
callas pdfToolbox SDK has no write-up on Specifiction yet; its figures are above.