Once the RightSignature document has been signed by all recipients, you can create a new flow to Trigger on RightSignature Document Signed to capture the document back on the Podio item.
Note: If you had checked "Both Sign" on the Sending action, all parties will need to sign in order to trigger this flow.
Note: If you use the Add Comment action, the document will attach in the comment. If you use a Create Item or Update Item action, the document will be attached to the Files section. If you add both a Create or Update Item with a Add Comment action, it will attach the document to both the Files section and the comment.
Remember: If you need to move the file, it needs to be attached in the Files section