I've got some PNG images within my LaTeX document. The quality of the image files is sufficient and the result using LaTeX and viewing the resulting DVI file is quite what I expect - looks good.
But I would need such quality of the images in my PDF files as well. But unfortunately when using PDFLaTeX the images are surprisingly worse quality in the resulting PDF file.
How can the quality for the resulting PDF file be improved?
I think there's happening some kind of rasterization which makes the images showing up in bad quality.
(I tried using
ps2pdf but the quality of the final PDF was the same. Additionally I would like to have a PDF ToC and the
hyperref-pdf features when using PDFLaTeX)
Searching the web I found the following but I'm not quite sure if this helps and were to set the mentioned parameters on my *buntu