Hi,
I am having an issue where when new assets are uploaded to a project, AEM seems to be automatically filling in tags, IPTC data, and titles of assets which in turn are giving incorrect asset previews. Is there a behavior that if an asset has already been in AEM, uploaded to a project again with a different name AEM with autofill tags based on some sort of signature in the jpeg?
There is no out-of-the-box matching mechanism that synchronizes data between an already existing asset in AEM and a newly uploaded one.
A somewhat related feature is duplicate detection [1]. Once activated it works as follows:
"When a user attempts to upload an asset that exists in Experience Manager, the system checks for conflict and indicates it. The assets are identified using SHA-1 hash stored at jcr:content/metadata/dam:sha1, which means duplicate assets are detected irrespective of the filenames."
If a user tries to upload an asset that is already present in AEM, he will be presented with an according warning message:
(See [2])
For your use case you would need to build a custom solution.
You may want to check the blog post [3] linked on the above mentioned documentation page that provides some guidance on the implementation around duplicate detection.
Hope that helps!
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