Click on "Settings". 

Next choose the index tab "Menubar Settings". Here you can specify a file name for the PDF document, which can be downloaded via the download button by the reader. This is the PDF file from which the edelpaper document was created. If you do not specify a filename, the file is always downloaded as issue.pdf by the end user. Please notice: do not use spaces in your file names.

Do not forget to save your settings.

Learn more about the player settings in our video tutorial: