The Chrome extension requires one configuration in the browser to be able to open PDF documents in the browser:
Chrome > Settings > Privacy and Security > Site Settings > PDF documents > Download PDFs
In most cases, this option has to be enabled manually by the user, which is not convenient for large-scale deployments.
To set up Google Chrome to Download PDFs during a large scale deployment, Administrators can use Chrome Enterprise Group Policies and the AlwaysOpenPdfExternally policy.
Administrators can download Chrome Enterprise policy templates from the following link:
https://chromeenterprise.google/browser/download/#manage-policies-tab
For details on how to apply Chrome policies, please visit the following link:
https://support.google.com/chrome/a/answer/187202
For more information about the AlwaysOpenPdfExternally policy, please visit the following link:
https://chromeenterprise.google/policies/#AlwaysOpenPdfExternally