#!/usr/bin/python
#
# Fix an EPS file so that high quality compression is used by the
# PDF converter.
#
# This software is in the public domain.
# See http://www.jwhitham.org.uk/ for updates.
# 
# Version 1.0 - Initial release - 30/11/2006.
# Version 1.1 - Bug fix for EPS files generated by GIMP - 02/03/2007.
# 


import os, sys


def EPS_Fixup(fn):
    f = file(fn, 'rt')
    remember = []
    before = True

    for line in f:
        if (( before )
        and ( len(line) > 3 )
        and ( line[ 0 ] != '%' )):
            before = False
            remember.append("""systemdict /setdistillerparams known {
<< /ColorACSImageDict << /QFactor 0.15 /Blend 1 /ColorTransform 1 /HSamples [1 1 1 1] /VSamples [1 1 1 1] >>
   >> setdistillerparams
} if\n""")
        remember.append(line)
    f.close()

    f = file(fn, 'wt')
    f.write(''.join(remember))
    f.close()

if ( __name__ == "__main__" ):
    if ( len(sys.argv) != 2 ):
        print "Usage: %s <eps file>\n"
        print "A command is inserted into the EPS file to force the use"
        print "of high quality compression."
        sys.exit(1)

    EPS_Fixup(sys.argv[ 1 ])