Use Adobe Acrobat on my Chromebook

@barbara_8707 hang on, did you say 'purchased Adobe Acrobat on my IPhone?' Did you buy it through adobe.com or on Apple App Store?

Sadly, the reason I ask is because your Adobe Acrobat purchase on your iPhone doesn't automatically carry over to your Chromebook. Because if your purchase was made through the Apple App Store, the subscription you have is for the Adobe Acrobat Premium mobile app, which is designed for use on mobile devices within the Apple environment. It does not automatically grant you access to the full-featured desktop version of Adobe Acrobat on your Chromebook.

If you bought it from adobe.com, that is 100% the opposite of that! This would be a cross-platform subscription like Adobe Acrobat Standard or Acrobat Pro, which includes access to the desktop, web, and mobile apps.