Non-profit organizations can request a reduced-cost license directly from Heidelberg’s CSR department, though this is not a "free download" – it requires formal application and proof of status.
Prinect Package Designer 21 focuses on speeding up the design process from initial draft to die-cutting tools. Heidelberger Druckmaschinen AG Parametric Design: Prinect Package Designer 21 Free Download
License & Trial
If you’re looking for or a case study on that specific version, no peer-reviewed paper would endorse a “free download” of commercial software. Instead, Heidelberg offers trial versions or educational licenses through resellers. Prinect Package Designer 21 Free Download
Providing free or highly discounted access to students and institutions. Prinect Package Designer 21 Free Download