Simple way to add an image in postscript

Question

I am trying to write a document in postscript.

Thus far I\'ve been able to write simple text, and work with lines and shapes.

I\'m now trying to add some ima

Answer 1

Is this a late answer! The problem with -dNOSAFER prevented me from using the other solutions, so I did the following:

Use Python to read the JPG file as binary and make it a string, compatible with /ASCIIHexDecode:

''.join(["%02x" % ord(c) for c in open(filename, "rb").read()])

Then instead of reading and decoding the image file from the postscript file, paste the above computed string in the postscript file, and filter it, first through /ASCIIHexDecode then /DCTDecode:

(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>)
  /ASCIIHexDecode
  filter             % ascii to bytes
  0 dict
  /DCTDecode         % jpg to explicit
  filter

the above snippet replaces (myJPEG500x133.jpg) (r) file /DCTDecode filter in the otherwise very helpful @Hath995 answer.

---

if you want something else than JPEG but still RGB (i.e.: you want something for which postscript has no decoder), and you can use Python to prepare your postscript file, you can use PIL, like this (it ignores the transparency byte, which is a on/off operation in postscript):

import PIL.Image
i = PIL.Image.open("/tmp/from-template.png")
import itertools
''.join(["%02x" % g 
         for g in itertools.chain.from_iterable(
                    k[:3] for k in i.getdata())])

for indexed files I would not know, but it can't be difficult to work it out.