himadree

I have to develop an Offline version of the Help Manual for the Delphi application that can display specific help topic pages of the Offline Help. Previously we used CHM to make an offline version which is very old technology. Mainly looking for the following advantages: Context-Sensitive Help Topic Table of Contents Search Index Add Favorites My priority is to have a single file output, like CHM, so it can be used offline without needing any external library links, and be easy for users to read. So far, I think PDF format is the only alternative to CHM that might offer similar features. Are there any open-source alternatives available that are suitable for this?