Released around 2012–2013, Nitro Pro 6.2.1.10 was a maintenance update aimed at improving stability, security, and performance. Unlike later bloat-heavy versions (v10, v12, v14), version 6 retains a clean, Microsoft Office-like ribbon interface with exceptional speed.

It efficiently handles bulk conversions (such as turning dozens of Word files into PDFs at once).

By upgrading to Nitro PDF Professional 64-bit 6.2.1.10, you can: