Image and document upload/download in Elasticsearch

I'm looking to build an app around Elasticsearch with image and file upload/download. So a user uploads an image or document (PDF, Word, etc.), the image gets stored, and retrieved later by users and admin. It looks like Elastic can import/ingest data from files and images, but it is not clear to me if the image/file itself can be uploaded and retrieved. I just need to know if that is possible. If not I'll need to include another system into my app.

I've probably found my answer here: Storing images in an index

It looks like it's possible, but inefficient.

I agree. Better to store blobs elsewhere IMO and add the link to the blobstore in the json document.

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