I hope that all attachments can have metadata that can be added. This way, I can associate the attachments as cards with other files.
I hope to add a metadata section at the top of attachments such as media, audio, image, and PDF.
Since not all attachment files can support adding metadata into the file, the only way to approach this (even an official way) would be to store the metadata in a separate file or database.
Since the metadata needs to be stored in a separate file anyway, you can do this right now by creating a note for each attachment, and associate that as a card with other files.
There is a plugin for that 
But still, it would be nice to incorporate this into obsidian itself. At least for images/PDFs
What’s the plugin?
Are you suggesting creating a note for each attachment and adding metadata to that note? I am currently using that method, but it has caused me a lot of trouble. In fact, not only regular media, but also canvas requires this kind of design. My ideal state is to be able to achieve a state similar to Capacities, where everything is truly interconnected. In the recent updates to Obsidian, I seem to have seen some hope. I think that in the future, for canvas, where attachment media usually exists as a component itself, a better method is needed for managing these attachments. In fact, I think Obsidian currently lacks the ability to manage attachment files, and I am not sure if there are third-party plugins that can better organize them. If there are, please let me know. Thank you.
I stumbled over this one GitHub - qawatake/obsidian-binary-file-manager-plugin: An Obsidian plugin to manage binary files
But I actually meant anotherone which I can’t find right now… I tested it only briefly.
It simply replaces the image with a markdown file with the image inserted/embedded.
