[poppler] Problem with pdfimages

[Jean-Claude REPETTO]

Hello,

I am trying to extract an image from a PDF file, with pdfimages 0.10.2. 
But pdfimages does not create any image, and reports no problem.
So I am wondering what is wrong :
- either the PDF contain no image (unlikely, because the document 
contains only a scan of a geographic map)
- either pdfimages is unable to read the image.

A few samples of these files can be downloaded at :
<http://www.megaupload.com/?d=NSZXCZL9>

Can somebody have a look at these files and explain why pdfimages is not 
able to extract the images ?

Thanks,
Jean-Claude