# Where diagrams are stored
Saving does POST /rest/api/3/issue/{key}/attachments with a file named
, using your own Jira permissions. The extension comes from the diagram language (mermaid → .mermaid, drawio → .drawio, excalidraw → .excalidraw, and so on). Diagrams therefore appear in the issue's Attachments field and travel with normal Jira attachment handling. Gadget diagrams are the exception. They live in the gadget's own configuration.
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## What it does
As ordinary Jira issue attachments. Not in a Capable data store.
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## Where you do it
| **Task** | **Where** |
| ----------------------------------------------------- | -------------------------------------------------------------------------------------- |
| Install Diagrams for Jira and approve its permissions | Atlassian Marketplace → Jira → Apps → Manage apps |
| Add a diagram to a Jira issue | Issue view → Diagram panel (or the Diagrams section in the issue details column) → Add |
| View a diagram full screen | Issue → Diagram panel → select a tab → View |
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## Settings that affect this
| **Setting** | **Where** | **What it does** |
| ---------------------------------------- | --------- | ---------------- |
| Admin / project / site settings | \- | \- |
| Diagram (gadget configuration). Diagram | \- | \- |
| Diagram (gadget configuration). Language | \- | \- |
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## Limits that apply here
| **Limit** | **Value** | **What happens** |
| -------------------------------------------- | --------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Diagram title length | \- | The Title input is capped at 50 characters. Titles are used verbatim as attachment filenames with no de-duplication or sanitisation, so two diagrams with the same title produce two identically named a |
| Browse page size | \- | Each JQL page requests 12 issues and the list reveals 12 rows at a time; Show more loads the next batch. (The shared hook's own default is 50; the Diagrams page overrides it to 12.). |
| Concurrent diagram previews on the browse pa | \- | Diagram content is downloaded one attachment at a time through a throttle, so thumbnails on a busy site fill in progressively rather than all at once. |
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## Related
[What leaves your Jira siteAnother connection.](https://help.gocapable.com/jira-diagrams/what-leaves-your-jira-site.html)
[LicensingAnother connection.](https://help.gocapable.com/jira-diagrams/licensing.html)
[IntegrationsEvery connection.](https://help.gocapable.com/jira-diagrams/integrations.html)
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