[OS X TeX] Unknown graphics extension: ps and latex209 files

Bruno Voisin bvoisin at mac.com
Sat Apr 22 08:11:45 EDT 2006

Le 22 avr. 06 à 00:14, Claudio Chagas a écrit :

> On trying to compile the file below I first got an error message: ! 
> LaTeX
> Error: Unknown graphics extension: ps

Most likely cause: you're typesetting your document in pdfTeX mode.  
Switch to TeX and GhostScript (in TeXShop's Typeset menu). pdfTeX  
mode uses (to simplify) pdfTeX which recognizes graphical files in  
PDF, JPG, PNG, etc. formats, but not PS or EPS formats. TeX and  
Ghostcript mode uses TeX + dvips + GhostScript; this combination  
recognizes graphical files in PS and EPS formats, but not PDF, JPG or  

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