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SnapOtter/apps/docs/tools/image/crop.md
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SnapOtter 8532f3227b docs: audit all 157 tool pages against live schemas
Reconcile every tool page's parameters, defaults, and response shape against the tool's Zod settings schema and executionHint in code. Notable fixes: color-palette (add count + format params, hex output, median-cut algorithm), favicon (add 5 params, was documented as having none), qr-generate (add logoDataUri), convert (add ppm/eps/tga formats), video-loudnorm (-16 LUFS not -14), smart-crop (async 202 not sync 200), images-to-video (1080x1080 square), and several output-filename and behavior-note corrections.

Also normalize API endpoint paths to /api/v1/tools/<id> (no modality segment) and standardize curl examples on the Docker API port 1349. Verified with a clean docs build.
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---
description: Crop images by specifying a region with position and dimensions.
---
# Crop
Crop images by defining a rectangular region using position and size. Supports both pixel and percentage units.
## API Endpoint
`POST /api/v1/tools/crop`
Accepts multipart form data with an image file and a JSON `settings` field.
## Parameters
| Parameter | Type | Required | Default | Description |
|-----------|------|----------|---------|-------------|
| left | number | Yes | - | X offset of the crop region (from left edge) |
| top | number | Yes | - | Y offset of the crop region (from top edge) |
| width | number | Yes | - | Width of the crop region |
| height | number | Yes | - | Height of the crop region |
| unit | string | No | `"px"` | Unit for the values: `px` or `percent` |
## Example Request
```bash
curl -X POST http://localhost:1349/api/v1/tools/crop \
-H "Authorization: Bearer si_your-api-key" \
-F "file=@photo.jpg" \
-F 'settings={"left": 100, "top": 50, "width": 800, "height": 600}'
```
Crop using percentage values:
```bash
curl -X POST http://localhost:1349/api/v1/tools/crop \
-H "Authorization: Bearer si_your-api-key" \
-F "file=@photo.jpg" \
-F 'settings={"left": 10, "top": 10, "width": 80, "height": 80, "unit": "percent"}'
```
## Example Response
```json
{
"jobId": "a1b2c3d4-e5f6-7890-abcd-ef1234567890",
"downloadUrl": "/api/v1/download/a1b2c3d4-e5f6-7890-abcd-ef1234567890/photo.jpg",
"originalSize": 2450000,
"processedSize": 1200000
}
```
## Notes
- The crop region must fit within the image boundaries. If the region extends beyond the image, the request will fail.
- When using `percent` unit, values represent percentages of the image dimensions (e.g. `left: 10` means 10% from the left edge).
- Output format matches the input format.
- EXIF orientation is auto-applied before cropping, so coordinates correspond to the visually correct orientation.