The coordinates returned by TextRenderInfo are going to be in user-space. 
Make sure that an appropriate coordinate system is selected when you are
doing your image placement.

I'm not sure what you mean by 'zoom factor' - if you mean the zoom that is
set in Acrobat when viewing the PDF, no that would have no effect.  If you
are talking about changes to the PDF coordinate system scaling, then it
certainly could impact things.


If you run your code against a more standard PDF (i.e. one created from
Word), do the images show up in the correct location?  If so, then some sort
of scaling is at work.  It might be a coordinate transformation that
TextRenderInfo isn't applying that it should be (though I'm pretty sure we
have all of them by now), or it could have to do with your image placement
code.



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