General ⇒ compression artefacts after using Photoshop to create eps

[drumex]

Hello all.

I'm a Latex newbie. I have used it for a number of assignments at the university so far, mostly sticking to default features of Miktex, nothing fancy.

Here's a problem that I have. In some documents, all the images I use are raster, so I use pdflatex. In certain others, however, I will have a combination of raster images and eps images (plots from Matlab etc). I use the graphicx package for images, by the way.

I know that latex doesn't accept raster images. Since I'm a beginner, I've been keeping notes on how to do certain things. So for this kind of a documents, I've taken notes to save any raster images as eps from within Photoshop, and then use them in the document with latex and dvipdfm afterwards.

Now, I remember using this method without any problems before, but yesterday when I tried the same, the images that were converted to eps from raster had horrible compression artefacts in the created pdf.

I'm using Photoshop CS2 and in the save as dialog, there are three eps options; Photoshop eps, and Photoshop DCS 1.0 & 2.0, both of which are eps as well. I think I've tried all combinations, all to no avail.

I'm really confused as to why something that apparently worked before (I think it did) has suddenly stopped working.

If I save any raster image with Inkscape as eps, everything's fine but I'd rather find out what's wrong with what I'm doing.

Sorry if the message is a bit incoherent or I forgot to mention relevant information.

Looking forward to resolving this one.

[Stefan Kottwitz]

Hi drumex,

welcome to the LaTeX Community board!
I would use raster images only with pdflatex. If I needed eps graphics too I would convert them to pdf using epstopdf or eps2pdf and include them (with pdflatex) by \includegraphics. I would not convert jpg or png to eps. As soon as I need raster graphics I would use pdflatex and convert eps top pdf when needed.

Stefan

[drumex]

I downloaded eps2pdf and gave it a go. Problem solved.

Thanks Stefan.