Hi @Raj_Pravat ! That's not possible at this time because there's no way for the image tag to authenticate. We know that's a need. You can follow this topic for updates about that feature:
1. What is the problem? Be very detailed.
I would like to hotlink media attachments hosted in ODK Central in the same way it was possible on ODK Aggregate. This would allow me to include attachments in data previews without having to download and then host them myself. (Auto-deployed pkgdown GitHub pages are a royal pain with custom resource files).
In order to hotlink attachments, the attachment URL for a media attachment would need to be made public (disabled authentication). This could be a…
An option that works in some cases is to link to the image. There's a way to do that that will prompt the user to log in if they haven't already: https://docs.getodk.org/central-submissions/#accessing-submission-media-from-external-tools