Yes, you can generate a production file from inside eDocBuilder without placing an order.
1a) For a forms-based (non-Interactive Designer) template:
When testing the template in eDocBuilder, click "Update Preview" and then "Finished Editing."
1b) For an Interactive Designer template:
When testing the template in eDocBuilder, click "Finished Editing" & "Continue"
2) Next, go to eDocBuilder's Orders tab and click on the "order" you just created. Select "Click to Generate File," and then click the download link that appears.