Guide

1. Click the 'Documents' tab.

2. Open a document in PandaDoc.

3. Click the 'Apps' icon within the document. 

4. Click on 'Attachments' from the Apps menu. 

5. Click 'Add attachment' to initiate the file upload process. 

6. In the upload window, choose 'Google Drive' as your file source. 

7. Click 'Connect to Google Drive' to log in to your account and select the desired file from your Google Drive.