Is Obsidian a good tool to use for writing technical manuals? I would like to write an Operation Manual for municipality's water system. There will be embedded screenshots and some links to other sections of the document.

Ideally we could "publish" to offline html. The customer would also like a printed manual.

If Obsidian is no good, I would love suggestions on software you have used to write short manuals with pictures, preferably not Word.