How to download music sheets if there is only a print option?
There is one trick — Virtual PDF Printer.
A virtual printer is a piece of computer software which is not connected with a physical computer printer.
When you push PRINT button and choose this virtual printer in list of your printers — the sheets, instead of being printed on paper, will transform in a file — image or pdf (your choice).
The easiest way is to use Chrome browser:
Click Destination: Change
Select Save as PDF
For other browsers I use PDFill, you can choose other Freeware Virtual PDF printers for Microsoft Windows: