When it was current, Nitro Pro 8 introduced several major features: OCR (Optical Character Recognition):

The Enterprise edition wasn't just about editing; it was about :

, to ensure compatibility with modern operating systems and to receive critical security updates. Users with older serial numbers may be eligible for discounted upgrade plans through the Nitro Upgrade Portal serial number's eligibility for an upgrade or finding the latest system requirements

: Permanently removing sensitive information (like SSNs or private names) was made simple with professional-grade redaction tools.