You've copied the file to your desktop, opened it, and made the changes requested by your boss. You save your changes, and then ask your boss to make sure it looks right. She opens the fundraiserposter file from the OneDrive and says that she doesn't see any of the changes she requested that you make. To fix this problem, your boss decides to email you the draft file she wants you to work with, and asks you to make the requested changes again l. You download the file from your email to your desktop and make the changes. Your boss also reminds you that Liam is expecting the file back to him in the PDF file format, which is an image file that will prevent accidental changes to the information or formatting of the poster. Now you're ready to save the changes you've made. Then you need to save the file in the pdf file format requested by the printing company. How do you do this