What is a PDF add-on?

When buying song sheets from Musicnotes.com, you will see the option to “Add a PDF Download” on the checkout screen (which costs an extra $2). Only select this option if you need a literal PDF file of the song sheet being purchased.

Otherwise, when buying any arrangement from Musicnotes.com:

• You’re buying one “print” of the song sheet. Printing is done directly from the Musicnotes website. You can print immediately after purchasing, or wait and do it days/weeks later. Additional prints must be purchased, per the norm of sheet music copyright laws.
• You also get lifetime access to view your purchased song sheets using your “Library” section of the Musicnotes website or app. “View” as in view it full screen, scroll through all the pages, etc.

A few other notes:

• As per Musicnotes policy, their “PDFs are not authorized for printing, digital distribution, or sharing of any kind.” So, don’t buy the PDF thinking it legally allows for unlimited prints.
• If your goal is to open a Musicnotes song sheet the popular app forScore, note you do not need to purchase the PDF add-on! forScore can display Musicnotes purchases at no extra cost (more info here)

If you’re not sure about the PDF add-on, I suggest not purchasing it at the time of purchase — since you can always go back and add it later. For more information, see the Musicnotes help article What is a PDF add-on, and what can I do with it?