Absolutely! You can totally download all signed documents from a DocuSign envelope as a single merged PDF using the eSignature API—this is a common use case, and it’s straightforward to implement.

How to do it: #

The key is using the combined documents endpoint, which returns all envelope documents merged into one PDF file. Here’s a breakdown of the steps:

1. Authenticate your request
   Ensure you have a valid access token with the envelopes:read scope (required to retrieve envelope documents).

2. Call the combined documents endpoint
   Use a GET request to the following endpoint, replacing {accountId} and {envelopeId} with your actual values:

   GET /v2.1/accounts/{accountId}/envelopes/{envelopeId}/documents/combined
   

   Include these headers:

   • Authorization: Bearer {your_access_token}
   • Accept: application/pdf

   Example curl command to save the merged PDF directly:

   curl --request GET \
     --url 'https://demo.docusign.net/restapi/v2.1/accounts/{accountId}/envelopes/{envelopeId}/documents/combined' \
     --header 'Authorization: Bearer {your_access_token}' \
     --header 'Accept: application/pdf' \
     --output merged_signed_documents.pdf
   

3. Handle the response
   The response will be binary PDF data. You can save this to a file, stream it to a user for download, or process it as needed in your application.

Additional tips: #

• Including/excluding the completion certificate: By default, the merged PDF includes the DocuSign Certificate of Completion. To exclude it, add the query parameter include_certificate=false to the endpoint URL.
• SDK support: All official DocuSign SDKs (Python, JavaScript, C#, etc.) wrap this endpoint for easier use. For example, in Python:

  from docusign_esign import ApiClient, EnvelopesApi
  
  api_client = ApiClient()
  api_client.host = "https://demo.docusign.net/restapi"
  api_client.set_default_header("Authorization", "Bearer " + your_access_token)
  
  envelopes_api = EnvelopesApi(api_client)
  merged_pdf = envelopes_api.get_combined_documents(account_id, envelope_id)
  
  # Save to file
  with open("merged_signed_docs.pdf", "wb") as file:
      file.write(merged_pdf)
  

• Envelope status: This works for fully signed envelopes. If the envelope is still in progress, the merged PDF will reflect the current state of all documents (e.g., unfilled fields, unsigned pages).

内容的提问来源于stack exchange，提问作者Ishita