Zend Guard lets you safely distribute and manage the distribution of your PHP applications while protecting your source code. Use Zend Guard to prevent unlicensed use and reverse engineering and to safeguard your intellectual property through encryption and obfuscation.

Limiting unauthorized duplication or use of your applications.

Ensuring that only licensed customers use your products and that they remain within the terms of your license.

Offering flexible licensing terms that make your software products more attractive, increase sales, and improve customer satisfaction.

Increasing conversion rate from evaluation to licensed product.

Preventing other people from changing your code (all files are rendered as un-editable and external changes will corrupt the code) protecting the files against external tampering.