or just do it the Instagram way.
https://help.instagram.com/581066165581870
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Nothing is changing about your rights in your content. We do not claim ownership of your content that you post on or through the Service. Instead, when you share, post, or upload content that is covered by intellectual property rights (like photos or videos) on or in connection with our Service, you hereby grant to us a non-exclusive, royalty-free, transferable, sub-licensable, worldwide license to host, use, distribute, modify, run, copy, publicly perform or display, translate, and create derivative works of your content (consistent with your privacy and application settings). You can end this license anytime by deleting your content or account. However, content will continue to appear if you shared it with others and they have not deleted it. "