Why does PDF preview only work when markdown editor is active?

Operating system

Windows

Joplin version

3.2.13

Desktop version info

Joplin 3.2.13 (prod, win32)
Client ID: 3c0497a02c924cfba8a79cbd5c8cffe3
Sync Version: 3
Profile Version: 47
Keychain Supported: Yes
Revision: a898e17
Backup: 1.4.2
Freehand Drawing: 2.14.0

Sync target

Joplin Server

Editor

Markdown Editor

What issue do you have?

Why does PDF preview only work when markdown editor is active? Same behavior in linux desktop.

Screenshots



Because the PDF preview only works with the Markdown editor.

I do not know why this is the case as I am not a developer. All I know is that this has always been the case since the PDF viewer was introduced.