PDFtoMusic Pro is a software developed by Myriad Online that converts PDF music sheets into editable scores. While your query mentions version 1.3.0, the latest major releases (as of 2025) have progressed to version Harmony Assistant Key Features of PDFtoMusic Pro

This is the world’s most popular free notation software. It has a built-in "Import PDF" experimental service that uses the Audiveris engine.

While the search for a stems from a genuine need to digitize and access sheet music, obtaining software through unauthorized channels poses significant security and ethical risks. For musicians relying on accurate transcription, investing in the legitimate tool is the safest and most reliable way to ensure the integrity of your music library.