| OpenPuff Steganography & Watermarking | Ace Secret Disk | PDF Encrypt Tool | PDF Page Lock | |
| 4.01 | 8.12 | 3.50 | 2.0.4 | |
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| Free Software | Shareware | Shareware | Freeware | Licence |
| FREE | $29.95 | $29.95 | FREE | Price |
| 12.51 MB | 6.65 MB | 3.05 MB | 11.33 MB | File size |
| Jul 11, 2018 | Feb 26, 2024 | Feb 25, 2014 | Jun 28, 2018 | Update |
| 14 | 70 | 39 | 34 | Downloads |
| Kubuntu, Kubuntu x32, Kubuntu x64, Linux, Linux x32, Linux x64, Ubuntu, Ubuntu x32, Ubuntu x64, Win10, Win10 x32, Win10 x64, Win2000, Windows 7, Windows 7 x32, Windows 7 x64, Win8, Win8 x32, Win8 x64, Windows, Windows Vista, Windows Vista x32, Windows Vista x64, Windows XP, Windows XP x32, Windows XP x64 | Win11, Win10, Windows 7 x32, Windows 7 x64, Windows 8 | Windows 2000, Windows XP, Windows 2003 | Win2000, Windows 7 x32, Windows 7 x64, WinOther, WinServer, Windows Vista, Windows Vista x64, Windows XP, Other | OS |
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