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
: 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.
: The OCR engine was updated to better support Apple’s M1-based Macs, allowing for faster and more efficient text recognition. PDFpen 13.1
: Issues with OCR halting on exceptionally long documents have been documented, with some users suggesting processing pages in smaller ranges as a workaround.
: Existing PDFpen 13 licenses are generally valid for activation within Nitro PDF Pro 13 . Common Technical Notes PDFpen 13
: This version improved document scrolling speed and the responsiveness of drawing tools, particularly on larger PDF files.
Following the 13.1 release, the application was rebranded as . : The OCR engine was updated to better
: New default sidebar modes, including Attachments and Form Fields, were added to help users organize their workspace.