# I encountered an 'errorUnknown graphics extension: .eps.'

I tried to load an .eps picture, but an error occured,

errorUnknown graphics extension: .eps.

• Does it complain about `.eps` or about `.eps.` ? – Taco Hoekwater Aug 3 '11 at 18:28

You are probably compiling your TEX document using `pdftex` (or `pdflatex`) while including an EPS image. This will not work. You need to convert the EPS to PDF (using something like the `epstopdf` package), or Distiller from Adobe Acrobat.
Alternatively, you may switch the compiler from `pdftex` to `latex`, which accepts EPS graphic format.
The best way around this is to never specify the graphic extension in your `\includegraphics{...}` command, but have both EPS and PDF versions of the file available. That will ensure that the correct type is used during compilation, as the driver will make the appropriate selection.