alchemy 在DOS下无损图象格式转换。几乎支持所有你见过的位图间格式的转换，包括unix工作站、苹果机系统、pc机等。可对目录、文件等进行工作-alchemy DOS lossless image format conversion. Almost all the support you seen between the bitmap format conversion, including unix workstation, Apple System, pc, and so on. Co