> For the complete documentation index, see [llms.txt](https://docs.subscripta.app/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.subscripta.app/exports/when-to-export-as-png.md).

# When to export a signature as PNG

PNG is the most visually stable format because email clients cannot recolor HTML text inside an image. It is useful when exact appearance is more important than interactivity.

## Use PNG When

* A client keeps changing text colors and exact appearance is required.
* You need a visually stable fallback for a specific recipient or client.
* The signature does not need interactive links.

## Do Not Use PNG When

* Recipients need clickable email, phone, website, social, or banner links.
* Recipients need to select, copy, or search the text.
* Accessibility is important.
* You need click analytics.

## Best Practice

Treat PNG as a fallback, not the default. HTML signatures are more functional and easier to maintain.


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