Hello, When textconv is specified, the program is always used for conversion. E.g. consider this: [diff "png"] textconv = wc Even if a png file is ASCII (manually created), wc gets called, and the result is made of its output. So, the question is: why should one specify binary = true together with textconv? There is an example in docs: [diff "ps"] textconv = ps2ascii binary = true ...But what binary = true does here? Even if we remove it, textconv is called for all ps-files. --- Best Regards, Ilya Kantor