PNG to eps conversion massive increase in file size

Question

I'm converting an image from .png to .eps and it hugely increases the file size. Can anyone explain why this is, and how to prevent it increasing so much.

I'm using Unix convert: convert image.png image.eps

Thanks for any help

Answer 1

Use level 3 postscript if you can. In general, level 3 will produce the smallest files. Level 2 provides the best compatibility, and works well with jpeg images. (see http://electron.mit.edu/~gsteele/pdf/)

convert fig.png eps3:fig.eps