Some pdf has title field set. The title (rather than the filename) shows at the top of acrobat. But I'd prefer the filename even the title field is set. I can what option I need to change in Acrobat. Would you please let me know? Thank you!
You need to modify the specific PDF's properties, "File => Properties". On the "Description" tab enter in the title of the PDF as needed. On the 'Initial View' tab in the "Windows Show:" section set the "Show:" option to "Document Title". Click 'OK'.