This add-on will allow to upload files from signing area after the document is signed.

1. Enable in Add-ons

2. Go to "Settings" and select which document types it will apply to. Send your document to the recipient.

3. Go to "Documents" and select the sent contract. Click on the document to open it in a new tab.

4. After the document has been signed by the recipient, you will see this image to the right of the document

5. Upload a file of your choice.