Easiest way is to use Acrobat (even Reader) to see if you can drag-select text (song title, credits, lyrics, etc.) in it. Then try the same thing with the musical notes, which in a file printed from an editor should be just carefully positioned text in a musical notation font. If you can select text in it, then it's likely the right sort of .PDF for PDF2Music.
If on the other hand each entire page appears to be one big image when you try to drag-select in it, then it's just that: an image, and PDF2Music won't handle it. OMeR or SharpEye would, though.
« Last Edit: Nov 8th, 2014, 1:19am by COMALite J »