          specify the PS compression level (1, 2, or 3).
     * prog/convertfilestops.c to generate a multipage level 3 compressed
           PS file that can then be converted to pdf with ps2pdf.
     * prog/convertsegfilestops.c to generate a multipage, mixed raster,
           level 2 compressed PS file.

   We provide generators for PDF output, again from all types of input
   images, and with ccittg4, dct, flate and jpx (jpeg2000) compression.
   You can do the following for PDF:
     * Put any number 