Final -x86-x64- - Nitro Pro 9.5.1.5

The inclusion of both 32-bit and 64-bit installers ensures legacy compatibility while allowing modern workstations to fully utilize available RAM. If you have a legal copy stashed on an old hard drive or a valid, unused license key, installing the on a Windows 10 machine will give you a PDF editor that feels snappier than many 2025 web-based competitors.

| Feature | Nitro Pro 9.5.1.5 (Final) | Adobe Acrobat DC Pro (2025) | Nitro PDF Pro 14 (Subscription) | | :--- | :--- | :--- | :--- | | | One-time (Legacy) | ~$30/month | ~$180/year | | Internet required | No (except activation) | Yes (continuous) | Occasionally | | Cloud storage | None | 100GB Adobe Cloud | Nitro Cloud | | Real-time collaboration | No | Yes | Yes | | Modern UI (Ribbon) | Old (Office 2010 style) | Modern flat | Modern flat | | Speed | Very fast | Moderate | Moderate | | PDF/A-4 support | No | Yes | Yes | nitro pro 9.5.1.5 final -x86-x64-

| Task | x86 (32-bit) | x64 (64-bit) | | :--- | :--- | :--- | | | 2.4 seconds | 2.6 seconds | | OCR (300dpi, 200 pages) | 4 minutes 22 seconds | 1 minute 55 seconds | | Export to Word (full doc) | 1 min 12 sec | 38 seconds | | RAM usage during OCR | 3.2 GB | 5.1 GB | | Scrolling smoothness | Good | Excellent (no stutter) | The inclusion of both 32-bit and 64-bit installers