| Official PO Software | Portable NAPS2 (Not Another PDF Scanner 2) | NAPS2 (Not Another PDF Scanner 2) | PDF-XChange Viewer | |
| 4.1.2.6 | 8.1.4 | 8.1.4 | 9.5.368.0 | |
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| Shareware | Open Source | Open Source | Freeware | Licence |
| $45.00 | FREE | FREE | FREE | Price |
| 7.46 MB | 61.60 MB | 42.90 MB | 14.10 MB | File size |
| Aug 2, 2024 | Apr 9, 2025 | Apr 9, 2025 | Apr 7, 2023 | Update |
| 48 | 30 | 28 | 214 | Downloads |
| Windows 11, Windows 10, Windows 10 x64, Windows 8, Win 8x32, Win 8x64, Win 7x32, Win 7x86, Win 7x64, Windows Vista, Windows Vista x64, Windows XP, Other | Windows 11, Windows 10 64 bit, Windows 8 32/64 bit, Windows 7 32/64 bit, Windows Vista, Windows XP 32/64 bit | Windows 11, Windows 10 64 bit, Windows 8 32/64 bit, Windows 7 32/64 bit, Windows Vista, Windows XP 32/64 bit | Windows XP, Windows Vista, Windows Vista x64, Windows 7, Windows 7 x64, Windows 8, Windows 8 x64, Windows 10, Windows 10 x64, Windows 11 | OS |
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