Getting done with trial edition will take you towards complete software licensed edition purchase. Software license has been categorised in two licenses which makes your purchasing more comfortable according to your requirement.

1. Personal license
2. Pro license
3. Military license

CubexSoft Data Wipe offiical webpage, from where you can start your purchase – https://www.cubexsoft.com/data-wipe/

Personal License

Personal License is limited towards two machines installation for unlimited PDF files. User is not allowed to recreate or distribute the software copy without prior permission of CubexSoft failing which he/she is liable for strict legal actions. Batch option is ENABLED in Personal License and allows Zero (1 Pass),
Random (1 Pass),
BitWipe - Simple (1 Pass),
Zero and Random (2 Passes),
Random and Zero (2 Passes),
BitWipe Medium (2 Passes)

Pro License

Pro License of the software supports installation on multiple machines and supports unlimited hard drive data deletions. Batch option is ENABLED in Pro License and allows Zero (1 Pass),
Random (1 Pass),
BitWipe - Simple (1 Pass),
Zero and Random (2 Passes),
Random and Zero (2 Passes),
BitWipe Medium (2 Passes),
US Navy - MFM (3 Passes),
US Navy - RLL (3 Passes),
US DoD / US Air Force (3 Passes),
Microsoft Cipher (3 Passes),
Bit Toggle (4 Passes),
BitWipe - Secure (4 Passes).

Military License

Technical License of the software supports installation on multiple machines and supports unlimited PDF data migration. Batch option is ENABLED in Military License and allows Zero (1 Pass),
Random (1 Pass),
BitWipe - Simple (1 Pass),
Zero and Random (2 Passes),
Random and Zero (2 Passes),
BitWipe Medium (2 Passes),
US Navy - MFM (3 Passes),
US Navy - RLL (3 Passes),
US DoD / US Air Force (3 Passes),
Microsoft Cipher (3 Passes),
Bit Toggle (4 Passes),
BitWipe - Secure (4 Passes),
NATO Standard (7 Passes),
Peter Gutmann (35 Passes).