Theoretically, a PDF might contain raster images of various resolution. Practically speaking, however, this will seldomly be the case. In the easiest case, a PDF will just binds(scanned) TIFFs of one and the same resolution. If the PDF is produced by a printer driver or distilled fom a PostScript file, one will generally define fixed resolutions for raster images and black and white images.
So I guess there generally *is* something like an ideal resultion for an PDF when being converted to a raster image. But this is more of a Ghostscript problem than a problem of ImageMagick. If your PDF just binds raster images, you should give pdfimages from Xpdf a try, which losslessly extracts them from the PDF, extracting the accordings streams. Wolfgang Hugemann _______________________________________________ Magick-users mailing list Magick-users@imagemagick.org http://studio.imagemagick.org/mailman/listinfo/magick-users
