Thank you very much, but issue activation, not possible to use it:
PDF viewer for WordPress has been updated to 11.4.0.
Please update PDF viewer for WordPress 11.4.0 to 11.5.0. @FestingerUpdates
We would LOVE to update to its latest version, but we encountered an issue with the activation with its latest version. We’re unable to bypass the security in its latest version, as it’s making a lot of server API calls. We will update the file as soon as possible once we got a solution for this.
Please read this topic for more information: