Packages with the metric use flag

app-text / xpdf : The PDF viewer and tools

  • Use A4 instead of US Letter paper size by default for PostScript output. This option has effect only if libpaper USE flag is disabled

media-gfx / jpeg2ps : Convert JPEG images to Postscript using a wrapper

  • Default to A4 paper size

media-gfx / potrace : Transforming bitmaps into vector graphics

  • default to a4 paper size and metric measurement

sci-geosciences / gmt : Powerful map generator

  • Use SI (cm) units instead of US (inches) ones