You can use Attendee Tools to create PDF of a document that includes individual details (i.e. a merge doc).
You need to have created the Merge Doc beforehand.
From the attendee's record (in the Attendee Panel), look for Tools (spanner icon):
Click on the PDF Merge Doc option
Click the drop down menu and select the merge document you created
Click Start to generate a PDF document.
You can also use the "Print Personalized Documents" feature if you want to print an attendance record, itinerary or similar edited report.