Part 2: How to Turn off Read only in PowerPoint for Mac OS When you open the file and want to change the content, you will get the locked prompt. Only the person with permission can edit the content. Step 4: Close the Info interface and your PowerPoint presentation is locked for read only. At last, click Create Account button and come back to the Info interface. Step 3: In the pop up box, you can click New Person button to add new permission. Then, Click Sharing & Permissions options and click “ +” to add new privilege permission. Step 2: In the Info interface, you can check Locked under General options. Step 1: Click Finder and find your PowerPoint file, right click it and choose Get Info. Part 1: How to Make a PowerPoint presentation Read Only on Mac OS Part 2: How to Turn off Read only in PowerPoint for Mac OS.Part 1: How to Make a PowerPoint presentation Read Only on Mac OS.How to Make a PowerPoint Presentation on Mac OS Read Only or Editĭo you know how to make a PowerPoint presentation on Mac read only or turn the read only off? This article tells you how to modify the PowerPoint file permission: Read only and change read only to edit on Mac.