---
title: "MpdfPostProcessor – API-Referenz · Quittio"
description: "Imports the pages of an existing PDF (FPDI via mPDF), embeds the XML and writes PDF/A-3 metadata and output intent."
canonical_url: "https://quittio.dev/docs/api/Quittio/Core/Pdf/PostProcessing/MpdfPostProcessor"
locale: de
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  "og:image": "https://quittio.dev/og/quittio-de.jpg"
  "og:image:alt": "Quittio: E-Rechnungen für PHP und Laravel. Rechtssicher, validiert, archiviert, mit geprüfter Beispielrechnung."
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  "og:title": "MpdfPostProcessor – API-Referenz · Quittio"
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  "twitter:image:alt": "Quittio: E-Rechnungen für PHP und Laravel. Rechtssicher, validiert, archiviert, mit geprüfter Beispielrechnung."
---

> Index of every page on this site: [llms.txt](https://quittio.dev/llms.txt)

[API reference](https://quittio.dev/docs/api) / [Quittio](https://quittio.dev/docs/api/Quittio) \\ [Core](https://quittio.dev/docs/api/Quittio/Core) \\ [Pdf](https://quittio.dev/docs/api/Quittio/Core/Pdf) \\ [PostProcessing](https://quittio.dev/docs/api/Quittio/Core/Pdf/PostProcessing)

# MpdfPostProcessor

final class in quittio/core · implements [`PdfPostProcessor`](https://quittio.dev/docs/api/Quittio/Core/Pdf/PostProcessing/PdfPostProcessor)

`Quittio\Core\Pdf\PostProcessing\MpdfPostProcessor` · [Source](https://github.com/Quittio/quittio/blob/v0.7.1/packages/core/src/Pdf/PostProcessing/MpdfPostProcessor.php#L23)

Imports the pages of an existing PDF (FPDI via mPDF), embeds the XML and writes PDF/A-3 metadata and output intent.

The result is PDF/A compliant only if the source PDF is: all fonts embedded, no encryption, no JavaScript. Check the result with veraPDF, ideally in CI.

## Methods \#

| Method | Description |
| --- | --- |
| `->__construct()` | |
| `->process()` | |

### `__construct()`#

```
public function __construct(?string $tempDir = null)
```

| Parameter | Type | Description |
| --- | --- | --- |
| `$tempDir` | `?string` = `null` | |

### `process()`#

```
public function process(
    string $pdf,
    ?EmbeddedXml $embedded,
    string $title,
    ?string $author = null,
): string
```

| Parameter | Type | Description |
| --- | --- | --- |
| `$pdf` | `string` | |
| `$embedded` | `? [EmbeddedXml](https://quittio.dev/docs/api/Quittio/Core/Pdf/EmbeddedXml)` | |
| `$title` | `string` | |
| `$author` | `?string` = `null` | |

<dl><dt>Returns</dt>
<dd><code>string</code></dd>
</dl>

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```