Because it no longer receives security updates, using version 9 may expose systems to vulnerabilities that have been patched in newer releases like Nitro PDF Pro 14. System Requirements (Legacy)

Functionally, Nitro Pro 9 excels in its conversion engine—its original claim to fame. While many PDF utilities produce output that garbles tables or misaligns headers, Nitro Pro 9’s OCR (Optical Character Recognition) and conversion algorithms are remarkably robust, even by today’s standards. The software excels at converting scanned PDFs into editable Word or Excel documents while retaining relative column structures. For a business analyst or legal assistant in 2014 (or even today), the ability to convert a static table from a PDF back into an .xlsx file with a single click was nothing short of a productivity miracle. Furthermore, the batch processing capabilities allowed users to convert entire folders of documents, a feature that modern "freemium" editors lock behind expensive monthly paywalls.

At its launch, Nitro Pro 9 introduced several advanced features for document management:

Users can edit text and images directly within a PDF or convert PDFs to editable Microsoft Word , Excel, or PowerPoint files.

Please note that (released around 2013). While it was a robust software suite at the time, it lacks many modern features found in the current versions (Nitro Pro 13/14). Additionally, official support and updates for Nitro Pro 9 have largely ended, meaning it may have compatibility issues with newer operating systems like Windows 11.