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

# Vision File Processing

<Warning>
  **Upcoming release — Zylon 1.58**

  These docs are published ahead of release so you can prepare your API integrations. The release image is not yet available. For installations running 1.57, use the [1.57 documentation](/en/v1.57/overview).
</Warning>

<Info>
  **Available from version 1.56**
</Info>

<Note>**Feature in Alpha**</Note>
<Note>**This feature requires a model with vision capabilities. See [AI Presets](/en/v1.58/operator-manual/ai-presets/presets).**</Note>

Enable vision-based file processing for documents and slides.

### Modes

| Mode | Description |
| - | - |
| `none` | Disables vision processing. Files are processed using text extraction only. |
| `lite` | Combines text and visual extraction to improve understanding of structure, images, charts, and diagrams. Designed to balance quality and efficiency. |

### Configuration

| Key | Default | Values | Description |
| - | - | - | - |
| `transformation.pptx.vision.mode` | `none` | `none \| lite` | Controls vision processing mode for PPTX files (`.pptx`). |
| `transformation.docling.vision.mode` | `none` | `none \| lite` | Controls vision processing mode for Docling-processed files (`.pdf`, `.docx`, `.xlsx`). |

### Recommendations

* Use `lite` when documents include important charts, diagrams, or images.
* Use `lite` for PPTX files when slide structure and chart interpretation matter.

<Warning>
  Enabling `lite` increases resource consumption and document processing time.
</Warning>

### Example

```yaml theme={null}
transformation:
    pptx:
      vision:
        mode: lite
    docling:
      vision:
        mode: lite
```


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