As an Owner, you have access to all completed documents via the Owner's Portal. To export a PDF of your documents, follow the steps below.
Navigate to Settings and select the "Details" tab.
Click "Export."
Now, select the categories you wish to include in your export and click "Create."
Once your export is complete, you will receive an email - Closeout Package Ready to Download. Click the download link indicated below.
For instructions on how to extract the downloaded zip file, see this article.