If you want unrestricted editorial rights to a read-only PowerPoint presentation, then you have to unlock it. The good news is that you can open it in a few simple clicks. Here’s how.
Unlock a Read-Only Presentation
There are two ways to tell if a presentation is a read-only file. The first is if you see the words “Read-Only” after the title of the presentation. The second is if you see a yellow message bar across the top of a presentation with a message letting you know the document has limited access.
Next to the yellow banner message will be a button that reads “Edit Anyway.” Click that button to unlock the PowerPoint.
The yellow bar should disappear along with the “Read-Only” text that appeared after the presentation title. Your PowerPoint will now be editable.
As the saying goes, there’s more than one way to cook an egg. The same applies to unlocking a presentation. Although this method involves a few extra steps, we wouldn’t be real geeks if we didn’t show you how.
First, open the read-only presentation and select the “File” tab.
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Source: How-To Geek