Printing solo part large with reduced score

I have a piece which is SATB + solo violin obbligato. When printing the full score the voice parts are OK but the violin part is rather small to play from a distance. Is there a simple way to create a pdf where the violin part is large but the choral parts are reduced and can just be seen as cues for the violin part. ? I know I can print the violin part separately, but it would be useful to show the chorus parts.