ChmPlus Reader is a handy CHM (Microsoft Compiled HTML Help) document/ebook reader.
Highlight/annotation/bookmark are now supported!
Features
• Lightweight and fast
• Highlight/annotation/bookmark
• Auto detect text encoding
• Search (find on page / document-wide search)
• Support CHM with .mht files (macOS 10.11 or later)
• Zoom in / zoom out
• Printing / Export to PDF