把pdf文档转换成chm格式文件的工具，不需要Adobe软件的支持，支持PDF1.5，能完美保留原有文章结构，可以用PDF的书签来制作chm文件的内容结构，支持4种图片格式，jpeg格式文件的质量可以调节。-Convert documents to pdf format chm tool, do not need Adobe software support, support PDF1.5, retain the original article can be a perfect structu

it is very useful,ImageMagick is a powerful, stable and free tool sets and setups, can be used to read, write and handle more than 89 basic format image files, including popular TIFF, JPEG, GIF, PNG, PDF and PhotoCD formats

Its a programme for convert JPEG file to PDF file