# File input (UI SDK): Accepted types and limits

> `accept` takes MIME types, wildcards and extensions. `maxFiles`, `minSize` and `maxSize` set the limits, and `validate` adds checks of your own. `FileInputRejections` lists each file that was left out with every reason, until the next accepted file.

Canonical: https://hextaui.com/docs/ui-sdk-file-input/examples/limits

Component docs: https://hextaui.com/docs/ui-sdk-file-input

## Add this example

```bash
npx shadcn@latest add https://hextaui.com/r/ui-sdk-file-input-limits.json
```

This adds `components/examples/ui-sdk-file-input/limits.tsx` with the File input component and the HextaUI theme tokens.

## Source

```tsx title="components/examples/ui-sdk-file-input/limits.tsx"
"use client"

import * as React from "react"

import {
  FileInput,
  FileInputDropzone,
  FileInputDropzoneDescription,
  FileInputDropzoneTitle,
  FileInputItem,
  FileInputList,
  FileInputRejections,
  FileInputTrigger,
  createFileInputController,
} from "@/components/ui/ui-sdk-file-input"

function UiSdkFileInputLimits() {
  const [files] = React.useState(createFileInputController)

  return (
    <FileInput
      multiple
      controller={files}
      accept=".pdf"
      maxFiles={3}
      minSize={1}
      maxSize={2_000_000}
      validate={(file) =>
        files.getValue().some((other) => other.name === file.name)
          ? "Already added"
          : null
      }
      className="max-w-md"
    >
      <FileInputDropzone className="min-h-32">
        <FileInputDropzoneTitle>Drop up to 3 PDFs</FileInputDropzoneTitle>
        <FileInputDropzoneDescription>
          2 MB each, no empty files and no duplicates.
        </FileInputDropzoneDescription>
        <FileInputTrigger className="mt-3">Choose PDFs</FileInputTrigger>
      </FileInputDropzone>
      <FileInputRejections />
      <FileInputList aria-label="PDFs">
        <FileInputItem />
      </FileInputList>
    </FileInput>
  )
}

export { UiSdkFileInputLimits }
```

## Props in this example

### FileInput

| Prop | Type | Default | Description |
| --- | --- | --- | --- |
| `accept` | `string \| string[]` | – |  |
| `multiple` | `boolean` | `false` |  |
| `maxFiles` | `number` | – |  |
| `maxSize` | `number` | – | In bytes. |
| `minSize` | `number` | – | In bytes. |
| `validate` | `(file: File) => string \| null` | – | Return a reason to reject the file, after the built-in checks. |
| `controller` | `FileInputController` | – | From createFileInputController(). |

## More File input examples

- [Image previews](https://hextaui.com/docs/ui-sdk-file-input/examples/images)
- [Upload button](https://hextaui.com/docs/ui-sdk-file-input/examples/button)
- [Prompt attachments](https://hextaui.com/docs/ui-sdk-file-input/examples/attachments)
- [Page-wide drop](https://hextaui.com/docs/ui-sdk-file-input/examples/page-drop)
- [Folders](https://hextaui.com/docs/ui-sdk-file-input/examples/folders)
- [Controlled](https://hextaui.com/docs/ui-sdk-file-input/examples/controlled)
- [Form](https://hextaui.com/docs/ui-sdk-file-input/examples/form)
- [Invalid](https://hextaui.com/docs/ui-sdk-file-input/examples/invalid)
- [Disabled](https://hextaui.com/docs/ui-sdk-file-input/examples/disabled)
- [Right to left](https://hextaui.com/docs/ui-sdk-file-input/examples/rtl)