HQPlayer Desktop manual is provided in PDF format as part of the product installation. On Windows and Linux, it can be found from the OS Start-menu, under HQPlayer group. On macOS, it can be found from the DMG installation package and can be dropped to a suitable location such as on your desktop for easy access.
HQPlayer Embedded product documentation is provided as help pages on the HQPlayer web interface. Help-link can be found near top right corner of the corresponding page on the web interface.
There is also a quick start guide covering some basic functionality of HQPlayer Desktop server and HQPlayer Client control application.