| Portable NAPS2 (Not Another PDF Scanner 2) | NAPS2 (Not Another PDF Scanner 2) | PDF-XChange Viewer | Win2PDF | |
| 8.1.4 | 8.1.4 | 9.5.368.0 | 11.0.8.1 | |
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| Users´ rating | ||||
| Open Source | Open Source | Freeware | Demo | Licence |
| FREE | FREE | FREE | $35.00 | Price |
| 61.60 MB | 42.90 MB | 14.10 MB | 28.90 MB | File size |
| Apr 9, 2025 | Apr 9, 2025 | Apr 7, 2023 | Dec 14, 2025 | Update |
| 38 | 34 | 226 | 36 | Downloads |
| 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 | Windows 10 32/64 bit, Windows 8 32/64 bit, Windows 7 32/64 bit, Windows Vista, Windows XP | OS |
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