How to add XMP metadata for Amazon AI people
Add the exact contains-synthetic-performer value to XMP dc:subject before uploading applicable media. The safest workflow is to inspect, append without overwriting, save a new file, and verify the written output.
Method 1: use AssetDisclose in the browser
- Open the free tool and choose Tag files.
- Drop one or more supported image files.
- Review the current status for each file.
- Select Write tag & verify.
- Download the verified file or batch ZIP.
Method 2: use ExifTool
ExifTool treats XMP-dc:Subject as a multi-value list field. Use the append operator when you need to preserve existing subject keywords, then read the field back to confirm the exact value. Avoid repeatedly appending the same value because that creates duplicates.
Windows and macOS notes
Windows File Explorer and macOS Preview can expose keyword controls, but operating-system metadata interfaces may write multiple metadata locations. Always verify that the final file specifically contains the value in XMP dc:subject rather than relying only on what a user interface displays.
Evidence behind this guide
Policy guidance can change. Confirm the current Seller Central instruction before a production upload.
Common questions
Why append instead of overwrite?
Overwriting can remove product, campaign, copyright, or workflow keywords already stored in the subject bag.
How do I verify the field after saving?
Reopen the saved output in a read-only verifier and confirm one exact contains-synthetic-performer value in XMP dc:subject.
Can I just put the keyword in the filename?
No. The requirement is metadata-specific; a filename is not the XMP dc:subject field.
Amazon AI media tagging resources
Move from policy interpretation to writing, verification, batch processing, and provenance.