Hi!
Just the other day, I needed to export my main Calibre Viewer settings to a portable install. Then I found that transferring the file viewer-webengine.json from %USERPROFILE%\AppData\Roaming\calibre to Calibre Portable\Calibre Settings was sufficient.
Annotations are stored in the viewer config subfolder, if you need to restore that as well.
(this, assuming you're on Windows)
Last edited by Comfy.n; 11-04-2022 at 03:12 AM.
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