With October 13, 2015 release of Acrobat, you can now install Acrobat without removing the previous version (X or XI) of Acrobat.
While installing Acrobat, the Creative Cloud desktop application or Acrobat installer provides you an option to remove or keep the previous version of Acrobat. By default, the Remove old/previous versions option is selected. If you want to install Acrobat without removing the previous version of Acrobat, clear the checkbox.
However, if you have both Acrobat X/XI and Pro installed on the same computer, some of the workflows and shared resources or preferences do not work with the previous version of Acrobat. They work fine with Acrobat.
Blocked workflows from Acrobat X/XI when you have both X/XI and Pro installed
All PDF creation workflows are blocked from Acrobat X/XI when Acrobat is installed. When you uninstall Acrobat, the workflows start working again from Acrobat X/XI.
What happens to the shared resources/preferences when you have both X/XI and Pro installed?
- Only one Adobe PDF printer is available in a co-existence environment, and that is Acrobat Pro.
- PDFMakers and Web Capture add-ons are of Acrobat only.
- Files in "C:\Program Files (x86)\Common Files\Adobe" in Win-64bit and "C:\Program Files\Common Files\Adobe" in Win-32 bit systems that are not saved in version-specific folders are shared.
- Custom Job options are shared.
