# Media EXIF data - Where does it come from?

**URL:** <https://forum.litium.com/t/media-exif-data-where-does-it-come-from/455>\
**Category:** Questions\
**Tags:** litium-7\
**Created:** [January 5, 2019, 6:39am UTC](https://forum.litium.com/t/media-exif-data-where-does-it-come-from/455 "2019-01-05T06:39:42Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![kristoffer](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.litium.com/kristoffer/32/106_2.png) [@kristoffer](https://forum.litium.com/u/kristoffer)\
**Post date:** [January 5, 2019, 6:39am UTC](https://forum.litium.com/t/media-exif-data-where-does-it-come-from/455/1 "2019-01-05T06:39:42Z")

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I have noticed that as you upload media in Litium 7, the accelerator media fields are being populated. Which service does this mapping from the image’s EXIF data to the media fields?

Litium version: 7

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**Author:** ![ton.nguyen](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.litium.com/ton.nguyen/32/989_2.png) [@ton.nguyen](https://forum.litium.com/u/ton.nguyen)\
**Post date:** [January 5, 2019, 10:23am UTC](https://forum.litium.com/t/media-exif-data-where-does-it-come-from/455/2 "2019-01-05T10:23:47Z")

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Please check this article [https://docs.litium.com/documentation/litium-documentation/media/upload-a-file-programmatically](https://docs.litium.com/documentation/litium-documentation/media/upload-a-file-programmatically)

FileMetadataExtractorService is the service that extracts exif data.

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**Author:** ![kristoffer](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.litium.com/kristoffer/32/106_2.png) [@kristoffer](https://forum.litium.com/u/kristoffer)\
**Post date:** [January 6, 2019, 4:44am UTC](https://forum.litium.com/t/media-exif-data-where-does-it-come-from/455/3 "2019-01-06T04:44:02Z")

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I see, so this service is called by automatically by Litium when media is uploaded not programmatically, but manually in the back office as well?

The reason I’m asking is because it seems to make for an interesting service to decorate.

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**Author:** ![ton.nguyen](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.litium.com/ton.nguyen/32/989_2.png) [@ton.nguyen](https://forum.litium.com/u/ton.nguyen)\
**Post date:** [January 6, 2019, 9:03pm UTC](https://forum.litium.com/t/media-exif-data-where-does-it-come-from/455/4 "2019-01-06T21:03:58Z")

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The service is called automatically when a file is uploaded via the backoffice UI. Developers can also use the service to extract the EXIF data when uploading a file, or integrating with other systems.