sorry for the typos, but editing time is limited.
If you open a PDF, zoom in quite considerably and still see smooth lines you are seeing vector PDF. If the zoom in reveals jaggy lines it is raster PDF or hybrid PDF.
http://www.pdftocad.com/
In my opinion inkjet is not the way to print a score. Even a A4 laser postscript printer (US legal or letter) will produce sharper images, including later enlargement to A3 (tabloid) with a photo copy machine.
.
If you open a PDF, zoom in quite considerably and still see smooth lines you are seeing vector PDF. If the zoom in reveals jaggy lines it is raster PDF or hybrid PDF.
http://www.pdftocad.com/
In my opinion inkjet is not the way to print a score. Even a A4 laser postscript printer (US legal or letter) will produce sharper images, including later enlargement to A3 (tabloid) with a photo copy machine.
.