Most comparisons still describe the Windows-only SelectPdf of 2025. Here is what changed, and what an open benchmark measured on the same machine under both systems.

I'm the founder of SelectPdf. The numbers below come from an open benchmark that anyone can re-run, and this article also says where IronPDF comes out ahead.

Search for "SelectPdf vs IronPDF" today and most results will tell you that SelectPdf runs only on Windows, renders with WebKit and cannot redact PDFs or convert Word files. Until October 2026 that was a fair description of the classic SelectPdf library.…