Hello Pol stra, Off-topic for this mailing list, but on-topic for you: You can do this with Inkscape. * Install Inkscape: http://inkscape.org/download/?lang=en * Open the EPS in Inkscape Working white-on-white sucks, so * File > Document properties > click to the right of 'Background:', below the Default units dropdown * Choose something nice and pastel-coloured with alpha (opacity) set to non-zero. * Select the object * Object > Ungroup (Ctrl+Shift+G) to make Inkscape see the individual paths, instead of a single EPS object The single rectangle selecting the object has now turned into a heap of rectangles. * With the colours at the bottom, set the fill to be red with click and/or set the stroke to be red with Shift+click This will probably not have the desired effect because some of the constituent paths will have black fill+transparent stroke, and with others it will be the other way round. So you'll have to set fill/stroke individually. * Select paths in turn, and set their fill/stroke as appropriate. Their respective values are shown in the bottom left. If you select multiple paths and their fill/stroke is different, it will be shown as "mixed"; when multiple paths' fills/strokes are not mixed they are identical, and you can change them all at once. (Depending on ... file-related things ... you may need to use Path > Object to Path at some point, and possibly Path > Break Apart. But probably not.) Good luck! --Sietse