Pdfpen 13.1 -

: New default sidebar modes, including Attachments and Form Fields, were added to help users organize their workspace.

: 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. PDFpen 13.1

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 : New default sidebar modes, including Attachments and

: Some users reported instability or freezing on early M1 Mac systems. This version also marked a significant transition period

: 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 .

: Existing PDFpen 13 licenses are generally valid for activation within Nitro PDF Pro 13 . Common Technical Notes