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Nitro adds Mac and mobile capabilities with acquisition of PDFpen

Global document productivity software company Nitro has announced the acquisition of PDFpen, a market-leading suite of PDF productivity applications for Mac, iPhone® and iPad®. 

The acquisition, Nitro’s first since its successful IPO in December 2019, expands the company’s powerful platform of document productivity solutions, enabling Nitro to serve knowledge workers across businesses globally. 


  • Nitro reaches binding agreement to acquire PDFpen, a suite of macOS, iPhone and iPad PDF productivity applications for Apple® desktop and mobile devices, for $6 million in cash. 
  • The addition of PDFpen strategically expands the Nitro Productivity Platform and provides productivity solutions for knowledge workers everywhere on virtually any device. 
  • Nitro reaffirms its FY21 ARR, revenue and EBITDA guidance. 
  • Completion of the transaction is expected on or before 9 July 2021. 

Nitro’s Productivity Platform already supports certain key mobile and tablet use cases, with eSigning available on any device with a web browser and Nitro Pro compatible with Microsoft Surface devices. The addition of PDFpen extends native PDF productivity to Mac, iPhone and iPad users everywhere. 

The expansion of Nitro’s Productivity Platform comes at a critical time for customers, with the work-from-anywhere tailwinds driven by the COVID-19 pandemic accelerating digital transformation, including the use of Mac and mobile devices. 

Nitro customers now have productivity solutions for virtually every device and operating system — at home, in the office, in the field and on the move. 

Under the terms of the acquisition, Nitro will acquire the PDFpen technology from US- based Smile, Inc. for $6 million in cash. The acquisition will be funded from the company’s existing cash reserves.

PDFpen provides a comprehensive document viewing, reviewing and collaboration experience, combined with powerful editing tools that enable users to sign PDFs, fill forms, search and redact sensitive information, export to Microsoft Word, Excel and PowerPoint, and so much more. 

Nitro Co-Founder and Chief Executive Officer Sam Chandler said: “As the first acquisition since our IPO, PDFpen marks a significant strategic milestone for Nitro. The addition of Mac and mobile capabilities to our platform better enables us to serve businesses and individuals on any device or operating system at a time when digital transformation has never been more relevant or more urgent for organisations around the world. It represents a major advance in Nitro’s vision to make document productivity easy, powerful and available to all.” 

Smile Co-Founder Philip Goward said: “We have strong roots in the Mac, iPad and iPhone platforms, and have focused our tools to be intuitive and easy to use. The PDFpen product family will be a perfect addition to the Nitro Productivity Platform, giving Nitro customers an even broader range of productivity solutions.” 

The transaction is subject to customary closing conditions, and it is anticipated these will be met on or before 9 July 2021.