: Added the ability to export PDFs to Microsoft PowerPoint and PDF/A-1b formats without an active internet connection. Transition to Nitro PDF Pro
Following the 13.1 release, the application was rebranded as . PDFpen 13.1
: Users of PDFpen 13.1 can use the Nitro Migration Assistant to move their library items, stamps, and user preferences to the newer Nitro application. : Added the ability to export PDFs to
: New default sidebar modes, including Attachments and Form Fields, were added to help users organize their workspace. : New default sidebar modes, including Attachments and
PDFpen 13.1, released by Smile Software in mid-2021, introduced several performance enhancements and new features for Mac users. This version also marked a significant transition period for the application following its acquisition by Nitro Software . Key Features and Improvements
: Some users reported instability or freezing on early M1 Mac systems.
: Existing PDFpen 13 licenses are generally valid for activation within Nitro PDF Pro 13 . Common Technical Notes