When converting .docx to .pdf, use the same name

When a file is shared in a format other than .pdf, there is an option to download a pdf-converted version of the file. However: this file is always given the undescriptive name "document.pdf", even if the original document had a more descriptive name (e.g. "course_syllabus.docx"). It would be helpful to modify the naming convention to use the original name, and only change the extension (i.e.: convert to "course_syllabus.pdf").