> For the complete documentation index, see [llms.txt](https://docs.fylr.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.fylr.io/for-administrators/readme/file-worker/custom-version-presets.md).

# Custom Version Presets

{% hint style="info" %}
Custom version presets are available from fylr **6.34.0**.
{% endhint %}

A **custom version preset** is a named set of on-demand rendition options for image files — for example "Web large (2000px JPEG)" or a square thumbnail with a watermark. Unlike preview [versions](/for-administrators/readme/file-worker/preview-configuration.md), presets are **not produced on upload**: the rendition is created the moment a user selects the preset in the download dialog, and the downloaded file is named after the preset. Presets are shared by all users; there is no per-group filtering.

## Configuration

Presets are configured in the base config on the **File Worker** tab, in the **Custom Version Presets** block. The block holds a table of presets. Use the plus button to add a preset, the pencil button to edit one, and the minus button to delete the selected preset.

Each preset has the following settings:

| SETTING      | DESCRIPTION                                                                                                           |
| ------------ | --------------------------------------------------------------------------------------------------------------------- |
| Name         | Internal name of the preset, used in the API. Must be unique within the configuration.                                |
| Display Name | Localizable name shown to users in the download dialog. Required.                                                     |
| Options      | The rendition options (see below). At least one option must have an effect, otherwise the preset is rejected on save. |

### Options

The option fields are the same as the custom-version options in the download dialog:

| OPTION        | DESCRIPTION                                                                                                                                                                                       |
| ------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Watermark     | Apply the configured watermark to the rendition.                                                                                                                                                  |
| Format        | Output file format. *Keep* leaves the format of the source file unchanged.                                                                                                                        |
| Quality       | Compression quality for lossy formats (for example JPEG).                                                                                                                                         |
| Color Space   | Output color space. *Keep* leaves the color space unchanged.                                                                                                                                      |
| Color Profile | Embed one of the configured [.icc color profiles](/for-administrators/readme/file-worker/custom-.icc-color-profiles.md).                                                                          |
| Size          | *Keep* leaves the dimensions unchanged, or choose *custom* to scale the rendition. Custom sizing can be given as a relative size, as pixel dimensions (width and/or height), or via a target DPI. |
| Transform     | Rotate / flip the rendition.                                                                                                                                                                      |

{% hint style="warning" %}
A preset must have a display name **and** at least one effective option. The editor disables **Apply** for an invalid preset, and the server rejects an invalid preset on save.
{% endhint %}

## Using a preset

When a preset applies to a file, it appears in the **Renditions** list of the download options alongside the standard renditions. See [Downloading](/for-users/download-and-export/downloading.md#custom-version-presets) for the user's perspective.


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