Music sheets export as PDF documents can be actually transformed to audio file with programs like PDFtoMusic. This will of course only work with .pdf documents that contain music notation data, not just and PDF documents.
Convert Adobe Portable document format to WAVe PCM Sound, standard Windows sound format.
We have found 2 software records in our database eligible for .pdf to .wav file format conversion.
Microsoft Windows software - convert pdf to wav on Windows
A PDF sheet to music converter
Convert from pdf file format
The tables with software actions are a good pointer for what a certain program does with various file types and often may give users a good hint how to perform certain file conversion, for example the above-mentioned pdf to wav. However, it is not perfect and sometimes can show results which are not really usable because of how certain programs work with files and the possible conversion is thus actually not possible at all.
A text-to-speech software