to resize an image, blur, crop, despeckle, dither, draw on, flip, join, re-sample, and much more.   This tool is similar to <a href="../www/convert.html">magick</a> except that the original image file is <em>overwritten</em> (unless you change the file suffix with the <a href="command-line-options.html#format">-format</a> option) with any changes you request.  See <a href="command-line-processing.html">Command Line Processing</a> for advice on how to structure your <samp>mogrify</samp> command or see below 