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When I try to compile this file http://danjer.doudouke.org/_media/tech/dokutexit/playground.zip this error occurs:

! LaTeX Error: Unknown graphics extension: .ps.

I'm using TeXworks Version 0.4.3 (MiKTeX 2.9) and pdfLaTeX.

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  1. You could compile with pdfLaTeX, if you add the line

    \usepackage{auto-pst-pdf}

    for automatic conversion of the PS images to PDF. It requires the option --enable-write18 set. Check the TeXworks preferences, Typesetting, Processing tools, pdfLaTeX:

    pdfLaTeX arguments

  2. You can compile it with XeLaTeX, which is directly supported by TeXworks. You can choose XeLaTeX in the drop-down menu.

    For compiling with XeLaTeX, remove these two lines from the preamble, as XeLaTeX natively supports UTF-8:

    \usepackage{ucs}
\usepackage[utf8x]{inputenc}

  3. Use LaTeX in DVI-mode, and convert as needed, using dvips and ps2pdf, or dvipdfm(x). You can call latex at the command prompt, or define a new tool for TeXworks in the preferences:

    TeXworks tools

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  • Seems to work! But there are now different errors. I will figure this out... – powtac Jan 20 '12 at 17:17
  • @powtac I was able to successfully compile that project both with pdfLaTeX and XeLaTeX, as described. If you encounter different problems or have follow-up questions, perhaps post a new question, with a link to this question. – Stefan Kottwitz♦ Jan 20 '12 at 17:26
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pdflatex can insert graphics in jpeg, pdf, and png formats. Can you convert your postscript image (assuming postscript since it has the .ps extension)?

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  • What else beside pdflatex can I use? – powtac Jan 20 '12 at 17:12
  • you can use plain latex which can insert the postscript image, or stay with pdflatex but convert your image to png, pdf, or jpeg. – Tim A Jan 20 '12 at 17:13
  • How can I receive plain latex in Windows? Is it part of GhostScript? – powtac Jan 20 '12 at 17:16
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When a user reported this error, I found that the .ps file was actually Encapsuled PostScript. The error went away when the .ps file extension was renamed to .eps

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