> What do you mean by "image"?  Raster image?  Vector image?
> 
The image is in gs notation I assume vectored (similar to and EPS)

Here is some background:
I am trying to extract FPO low res images that appear in a PDF document
(those appearing with OPI comments). For the most part I have been
successful extracting images of various different formats and encodings
(applying the appropriate decoder where necessary).

I decided to used some random different files for testing (I chose this one
at random from the internet) and I have problems:

http://media.wiley.com/product_data/excerpt/18/EHEP0000/EHEP000018-1.pdf

Now I know the image exists (it's a little key symbol) because I can see it
on the page so the image is there somewhere (the low res one). Note the F
PdfName refers to the high res image (which I don't care about for now)

This is the object which is identified (for page 3) as the OPI reference for
the image. Normally it would have image but it is a form in this case.

^M25 0 obj<>>>/Subtype/Form/Length 70/Filter/FlateDecode/Name/Fm20/Matrix[1
0 0 1 0 0]/Resources<>/ProcSet[/PDF]/ExtGState<>>>/Type/XObject/BBox[0 0
1332.0 783.0]/FormType 1>>stream 

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