Re: [Gimp-user] (preferably Linux-based, OS) utility to extract images from image-based pdf files ...

[scott092707 aol com]

Perhaps I am misunderstanding something, but why can't you just do the following:

Open GIMP

Open the .pdf file
     Gimp will show a PDF-Input window:
           change the resolution to at least 300ppi
           select only the pages that contain the images you want
                 (use ctrl-click to select multiple individual pages, or use the
                   Select range text box to input page numbers)
            Click on Import
      Gimp will default to opening each page as a layer.

 Select the images you want [probably rectangle-select], and copy/paste as new layer 

 Do whatever you want with the images.

?