How to read the Diagnostic Mode in the Web Client

Question:
How to read the Diagnostic Mode in the Web Client?

Answer:

1. Find document in file system.
2. Load document metrics on client.
3. Load document metrics on the server (File Type, Annotation info etc for rendering).
4. Load single page data on the client (give client required info for display).
5. Render single page data on the server.
6. Deliver image to client and display.