Answer:
To use the Help function, including the link to the corresponding manual chapter, the installation of Adobe© Reader is required in our programs. Links to other PDF programs are currently not possible.
The PDF files are located in the program directory of the application in the "Help" folder. There, you can open them with any PDF software. For RSTAB 8.18, the path of the default installation is as follows: C:\Programme\Dlubal\RSTAB 8.18\Help
