You could do this batch processing.
You need to select the action from Action Wizard and then choose files accordingly.
Once selected you would be able to export multiple files at once.
Launch Acrobat>Tools>Action Wizard>New Action>Choose Export PDF and name the action to performed.Click OK to save changes.Select the files to be exported and follow the instructions further.
Sukrit has provided you a success path. Do note that it requires the use of the Pro version of Acrobat (for the "Actions" facility).