linux下将各类格式图片转换工具，包含bmp,jpeg,gif,ppm,jpg,pcx,png,ti-under linux type of format conversion tools pictures, including bmp, jpeg, gif, ppm, jpg, pcx, png, tiff, etc.

Imagemagic是一款创建、编辑、压缩图像的软件。可以转换 DPX, EXR, GIF, JPEG, JPEG-2000, PDF, PhotoCD, PNG等格式，并且能够轻松的对图片进行旋转，缩放等操作-ImageMagick® is a software suite to create, edit, and compose bitmap images. It can read, convert and write images in a variety of formats (

DjVu documents download and display extremely quickly, and look exactly the same on all platforms. DjVu can be seen as superior alternative to PDF and Postscr ipt for digital documents, to TIFF (and PDF) for scanned documents, to JPEG for photo

libpng（PNG库）是一种用于创建和修改PNG格式图形文件的工具。PNG格式可以在较小程度上替代GIF、TIFF格式，并且有很多改进和延伸。-libpng (PNG library) is a way to create and modify PNG format graphics files tool. PNG format can be an alternative to a lesser extent, GIF, TIFF format, and there are many modi