> ## Documentation Index
> Fetch the complete documentation index at: https://docs.gethinto.com/llms.txt
> Use this file to discover all available pages before exploring further.

# ATTACHMENT_TYPES

> The file types a customer can attach: images, PDFs, and text files.

The file types a customer can attach: images, PDFs, and text files. HEIC and HEIF photos are
stored as JPEG, so an uploaded or delivered file never has those types.

```typescript
const ATTACHMENT_TYPES: readonly ["image/png", "image/jpeg", "image/gif", "image/webp", "application/pdf", "text/plain", "text/csv", "application/json", "image/heic", "image/heif"]
```


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