IPTC metadata to ANS field mapping
The following table lists the mappings of the International Press Telecommunications Council (IPTC) standard metadata fields to the Arc Native Specification (ANS) fields.
These mappings are applied on upload (IPTC → ANS) and again on download (ANS → IPTC), so edits made to mapped fields in Photo Center will appear in the IPTC metadata of any binary downloaded from the UI or via the Photo API with ?replace=true. On download, a mapped IPTC field is only rewritten if its ANS value differs from the original value extracted on upload. IPTC fields that aren’t mapped to ANS are preserved on the downloaded binary as-is.
| IPTC | ANS | Description |
|---|---|---|
| TAG_BY_LINE | credits.by[0].name | Name of the author |
| TAG_HEADLINE | subtitle | Subtitle for the image |
| TAG_OBJECT_NAME | slug | A short reference name for internal editorial use |
| TAG_CAPTION | caption | Caption for the image |
| TAG_BY_LINE_TITLE | additional_properties.iptc_title | Jobtitle of the author |
| TAG_SOURCE | additional_properties.iptc_source | Original owner or copyright holder of the photograph |
| TAG_CREDIT | credits.by[0].affiliation | The name of an organization the author is affiliated with |
| TAG_KEYWORDS | taxonomy.keywords | A list of keywords. In the Arc ecosystem, this list is populated by Clavis |
| TAG_DATE_CREATED | taken_on | When the content was originally created (RFC3339-formatted). In the Arc ecosystem, this will be automatically generated for stories in the Story API. |
| TAG_CITY | address.locality | Name of the city where the primary contact’s business is located |
| TAG_PROVINCE_OR_STATE | address.region | Name of the province or state |
| TAG_SUB_LOCATION | address.street_address | Street and number |
| TAG_COUNTRY_OR_PRIMARY_LOCATION_CODE | address.country_name | Name of the country |
| TAG_COPYRIGHT_NOTICE | copyright | A copyright notice for the legal owner of this content |
| TAG_SPECIAL_INSTRUCTIONS | usage_instructions | Instructions and restrictions for appropriate content reproduction |
| TAG_ORIGINAL_TRANSMISSION_REFERENCE | taxonomy.associated_tasks | A list of WebSked task IDs the content was created or curated to satisfy |
| TAG_JOB_ID | taxonomy.associated_tasks | Optional. TAG_ORIGINAL_TRANSMISSION_REFERENCE is the preferred value for taxonomy.associated_tasks |