HelpSmith

HelpSmith is a full-featured tool for authoring CHM Help systems, Web Help, PDF, ePub eBooks, and Printed Manuals with support for Dynamic Styles and advanced approach to manage graphical files. The tool includes a Word-style text editor with a live spell checker, editors for rapid TOC and Index creation, a fast and extremely easy-to-use interface.

Now you can add various annotations to an image: rectangles, balloons, lines, arrows, text labels, and other objects.Added support for clickable hotspots that you can add to an image to link to another topic, to an external URL, or email address.