Which of those
"several open source packages" includes a scriptable
(ie, command-line) tool to extract the embedded images from a PDF?
If you have a
"need" for extracting images from PDF than you are
missing the point of PDF. If you can view it and print it you have
no need to extract images from it.
That's a nice-sounding theory, but it is wrong.
You do not know better than I what I have need to do with PDFs.
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