Welcome @ccornell29
Note: This is assuming you’re importing, not indexing files into your databases. If you are indexing files, you’ll have to locate and move those items independently.
On the old machine…
- In the Finder, select the Go menu while holding the Option key, then choose Library.
- Go into the Application Support folder and copy the DEVONthink 3 folder to an external drive.
- Do a Spotlight search for kind:database name:dtBase2.
Select Show All in Finder in the results to see all the DEVONthink databases you have. (Ignore Inbox.dtBase2 if it appears in the results.) - Copy these files to the external drive.
- Properly eject the external drive and connect it to the new machine.
On the new machine…
- In the Finder on the new machine, select the Go menu while holding the Option key, then choose Library.
- From the external drive, copy the DEVONthink 3 folder to the Application Support folder.
- Move the database files from the external drive to the Databases folder in your Home directory.
- Download a new installer from here: DEVONtechnologies Downloads and install DEVONthink 3 in /Applications.
- Double-click each database file to open them in DEVONthink 3.