Introduction - If you have any usage issues, please Google them yourself
1. Add documents: free to choose whether to enable keywords, the main delivery, Cc, and so on.
2. Annex document: You can add an attachment within the document.
3. Documents classified: view document can enable password verification.
4. The document query: Powerful document query engine can query for any error prompt.
5. Individual management: document password, document type, posting units can be managed separately calls.