| Unlock Secured PDF Files | Unlock Secured PDF | PDF Unlock | Unsecure Secured PDF | |
| 3.5 | 3.9 | 5.5.1 | 3.5 | |
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| Shareware | Shareware | Shareware | Shareware | Licence |
| $19.00 | $19.00 | $19.00 | $19.00 | Price |
| 2.36 MB | 1.51 MB | 1.19 MB | 1.09 MB | File size |
| Mar 12, 2014 | May 24, 2012 | Dec 25, 2012 | Apr 8, 2014 | Update |
| 42 | 60 | 61 | 42 | Downloads |
| Win2000, Windows 7 x32, Windows 7 x64, Windows Vista, Windows Vista x64, Windows XP | Win2000, Windows 7 x32, Windows 7 x64, Windows Vista, Windows Vista x64, Windows XP | Win2000, Windows 7 x32, Windows 7 x64, WinOther, Windows Vista, Windows Vista x64, Windows XP, Other | Win2000, Windows 7 x32, Windows 7 x64, Windows Vista, Windows Vista x64, Windows XP | OS |
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