| Lock PDF to Unlock PDF Online | PDF Security Removal | PDF Security Removal | Ace Secret Disk | |
| 2.1 | 4.0 | 3.9 | 8.15.0.0 | |
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| Shareware | Shareware | Shareware | Trialware | Licence |
| $16.00 | $19.00 | $19.00 | FREE | Price |
| 1.97 MB | 1.51 MB | 2.05 MB | 13.50 MB | File size |
| Dec 21, 2013 | Apr 16, 2014 | Aug 6, 2015 | May 1, 2025 | Update |
| 30 | 51 | 38 | 95 | Downloads |
| Win2000, Windows 7 x32, Windows 7 x64, WinServer, 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, Windows Vista, Windows Vista x64, Windows XP | Windows 11, Windows 10 32/64 bit, Windows 8 32/64 bit, Windows 7 32/64 bit | OS |
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