Trill Marking Printing Wrong to PDF
I'm not sure if this will be your problem or the PDF creator program you use.
I have two trill markings on a piece. It prints out OK from Musescore but if I save to PDF then the two trill markings seem to be cut off at the front and back so I only get the middle part of the "r" in the PDF.
I have saved to PDF through another PDF creator program (PDF re-Direct v2 - this is a free program; it also lets you join up PDFs into a paged document - really handy for making a book) and it converts to PDF perfectly, including the trill marking.