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SnapOtter/apps/docs/tools/video/resize-video.md
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SnapOtter d24e244af4 docs: organize tool pages by modality under /tools/<modality>/
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---
description: Scale a video to a new resolution or preset size.
---
# Resize Video
Scale a video to a new resolution using custom pixel dimensions or a standard preset.
## API Endpoint
`POST /api/v1/tools/video/resize-video`
Accepts multipart form data with a video file and a JSON `settings` field.
## Parameters
| Parameter | Type | Required | Default | Description |
|-----------|------|----------|---------|-------------|
| width | integer | No | - | Target width in pixels (16-7680) |
| height | integer | No | - | Target height in pixels (16-4320) |
| preset | string | No | `"custom"` | Resolution preset: `custom`, `2160p`, `1440p`, `1080p`, `720p`, `480p`, `360p` |
When `preset` is `"custom"`, at least one of `width` or `height` must be provided. The other dimension scales proportionally.
## Example Request
```bash
curl -X POST http://localhost:1349/api/v1/tools/video/resize-video \
-H "Authorization: Bearer si_your-api-key" \
-F "file=@clip.mp4" \
-F 'settings={"preset": "720p"}'
```
Resize to custom dimensions:
```bash
curl -X POST http://localhost:1349/api/v1/tools/video/resize-video \
-H "Authorization: Bearer si_your-api-key" \
-F "file=@clip.mp4" \
-F 'settings={"width": 1280, "height": 720}'
```
## Example Response
```json
{
"jobId": "a1b2c3d4-e5f6-7890-abcd-ef1234567890",
"downloadUrl": "/api/v1/download/a1b2c3d4-e5f6-7890-abcd-ef1234567890/clip.mp4",
"originalSize": 25000000,
"processedSize": 8500000
}
```
## Notes
- Preset values map to standard heights (e.g. `720p` = 1280x720, `1080p` = 1920x1080). Width scales proportionally from the source aspect ratio.
- Dimensions are rounded to even numbers as required by most video codecs.
- Maximum supported resolution is 7680x4320 (8K UHD).