The most direct way to access a guide for your specific version is through the software itself or the official website:
: Access functional classifications and troubleshooting for Windows and Android . Core Features Guide Where Can I Find the User Guide for Help? - PDF Reader Pro PDF Reader Pro 2.8.0.1
: Navigate to Help in the main menu to find the User's Guide . Quick Start Guides : Windows Quick Start Guide Mac Quick Start Guide The most direct way to access a guide