[OS X TeX] .eps file can't be recognized

David Derbes loki at uchicago.edu
Sat Aug 27 10:19:05 EDT 2016

There are two simple fixes. 

Assuming you are using TeXShop (and, in my opinion, you should :-)), open the .eps file from within TeXShop. (When Herb Schultz told me to do this a decade or so ago, I thought he was kidding.) This converts the .eps file to a .pdf file. (Well, you still have the .eps file; it makes a .pdf version of the .eps file.) Then you include the file by an \includegraphics{filename} [NOTE: do not use the .pdf extension here]. 

Alternatively, by instructing LaTeX to include .eps files, it will do this for you on the fly. The downside of this method is that it will reconvert the .eps file on every recompile. This takes a lot of time if you have many images.
On my system, I simply write \includegraphics{filename} for filename.eps, [NOTE: do not use the .eps extension here] and this happens automatically. You might need to \usepackage{epstopdf} in your header.

I hope this helps.

David Derbes
U of Chicago Laboratory Schools

On Aug 27, 2016, at 8:55, 林隽 <jlin at ynao.ac.cn> wrote:

> Hi Experts,
> I was told that my .eps file can't be recognized when compiling .tex file: Unknown graphics extension: .eps
> Could anybody teach me what this means? Do I have missed anything important? Thanks very much for your attention.
> Jun Lin
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