Making a PDF from Notion file

I am trying to get some music to a teacher for his comments and he does not yet have Notion (is getting it soon). He is using Finale at present. (I have an old version of Finale but never use it. Same with Sibelius, Logic for the PC and Harmony Assistant.) I am on a PC.
In the meantime, he suggests sending an MP3 file and a PDF file of each piece. For the sound file, I can go Notion to wav file to MP3. No problem there. I can also print the score and then scan it to PDF (I have a scanner that does that well). However, I'd rather not print out scores; I'd rather send email attachments. Is there another way to go?
I see Notion can export in XML format but I am not familiar with how MusicXML works.
Any suggestions would be appreciated.
Jon
In the meantime, he suggests sending an MP3 file and a PDF file of each piece. For the sound file, I can go Notion to wav file to MP3. No problem there. I can also print the score and then scan it to PDF (I have a scanner that does that well). However, I'd rather not print out scores; I'd rather send email attachments. Is there another way to go?
I see Notion can export in XML format but I am not familiar with how MusicXML works.
Any suggestions would be appreciated.
Jon