Got questions about Orpheus? You're in the right place!
Orpheus can handle the following file formats: PDF, JPG, JPEG, PNG, TIFF.
PDF is the recommended format because it is high res, good contrast ratio (for readability), and is a universal format that all Android devices and computers can handle. A lot of digital sheet music is distributed in PDF format, and it’s generally the format that scanners with ADF spit out. If you need help converting your sheet music to PDF there is a tutorial here.