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

# Thumbnails

# Video Thumbnail Transformations

Generate thumbnails from your videos using our transformation parameters.

## Basic Usage

### Timestamp Selection

Generate a thumbnail at a specific timestamp:

```
thumb-so_5.0
```

The `so` (seek offset) parameter specifies the timestamp in seconds. Default 5.0.

## Combining with Image Transformations

Thumbnail generation can be combined with other image transformations:

```
thumb-so_10.0,w_300,h_200,c_fill
```

<Note>
  Thumbnails support all image transformation parameters. Refer to the [Image
  Transformations](/transformations/image/introduction) documentation for the
  complete list of available parameters.
</Note>

## Examples

### Basic Thumbnail

```
thumb-so_5.0
```

### Thumbnail with Resize

```
thumb-so_15.0,w_1280,h_720
```

### Thumbnail with Crop and Effects

```
thumb-so_30.0,w_500,h_500,c_fill,g_center,blur_5
```

### Mobile-Optimized Thumbnail

```
thumb-so_5.0,w_720,h_1280,c_fit
```

## Best Practices

* Choose meaningful timestamps for preview images
* Consider using multiple thumbnails for video previews
* Optimize thumbnail dimensions for your use case
* Combine with other transformations for perfect results