Custom PHP Script Integration

I need help making added menu options operational on a Custom PHP website. We bought a script from CodeCanyon and installed it.

Key Tasks:
- Implement PDF crop functionality
- Generate manifests
- Menu options guided by provided details

Ideal Skills and Experience:
- Proficiency in Custom PHP development
- Experience with PDF manipulation
- Familiarity with CodeCanyon scripts
- Strong problem-solving skills

Looking for a developer who can efficiently execute these tasks and ensure seamless integration.