Create an Electronic Seal Document.

ℹ️ This endpoint accepts two request body formats — pick the one that matches your use case:

• 📁 multipart/form-data — upload a binary file.
• 📝 application/json — create from a JSON payload referencing a previously sealed source document.

🔓 Endpoint access

• Environments: production, sandbox
• API key scopes: organization, workspace
• Plans: pro, scale
• Add-ons (for production access): Electronic Seal or Advanced Electronic Seal or Qualified Electronic Seal