Offline CHM can download Web pages and compile to CHM quickly. CHM is Compiled HTML Help file format. It is a very popular and abundant file format on the Internet. And it is very convenient to share resources and pack files up and back them up. Offline CHM downloads Web pages quickly and packs them up to CHM files. Then you can share the files with your friends. Offline CHM has powerful functions and can be used easily. It can be integrated in Internet Explorer as a plug-in. Offline CHM supports index and keywords of CHM. It also supports drag-and-drop of URLs and files.