Setting font size in Greek text with TexnicCenter and Miktex

Question

How is it possible to define the fontsize in documents written in Greek? I am using TexnicCenter and Miktex and trying the following example

\documentclass{article} 
\usepackage[utf8]{inputenc}
\usepackage[LGRx,T1]{fontenc}
\usepackage[english,greek]{babel}

\begin{document}

Ελληνικό Κείμενο 

\end{document}

the output is fine. However once I combine two languages, for example

\documentclass{article}
\usepackage[utf8]{inputenc}
\usepackage[LGRx,T1]{fontenc}
\usepackage[english,greek]{babel}

\begin{document}

Ελληνικό Κείμενο \selectlanguage{english} English Text

\end{document}`

the english part just looks terrible in the pdf (pixelated). Similarly if I try to set the fontsize in the beginning, the same happens for the greek part of the text.

\documentclass[12pt]{article}
\usepackage[utf8]{inputenc}
\usepackage[LGRx,T1]{fontenc}
\usepackage[english,greek]{babel}

\begin{document}

Ελληνικό Κείμενο

\end{document}`

I cannot really tell what causes this. Should I be using a different font? Are there some settings that should be used to make everything look OK?

As I was looking for possible solutions I also came across this document that tries to describe some guidelines for the greek language for a different package, but the pdf itself has the same issues (just zoom in and notice the greek text) lgreekuse.pdf.

Also here in this document, greek-usage.pdf the greek fonts have exactly the same issues.

Answer 1

To get type1 fonts in the english part: Install the cm-super fonts or use \usepackage{lmodern}. To get type1 fonts in greek for sizes other than 10pt see polutonikogreek with lmodern 12pt.