Potrace是一个位图图片的优化工具，它可以使其成为平滑，可自由缩放的图片。它输入的格式可以是PBM, PGM, PPM, 和 BMP 格式，默认的输出格式是EPS文件，它可以用于将公司的徽标和文件的扫描图片的锯齿消除，以任何分辨率显示出来。它的输出格式有： EPS, Postscr ipt, PDF, SVG , Xfig, Gimppath, 和PGM . -Potrace is a bitmap image optimization tools, which can make it smooth, free to zoom the pictures. Its format can be imported is PBM, PGM, PPM, and BMP formats, the default output format EPS files, it can be used for a company's logo and documents scanned images to eliminate the jagged, any resolution to be displayed. Its output formats : EPS, Postscr ipt, PDF, SVG, XFIG, Gimppath and PGM.