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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.

2026-06-18 14:12:28 +08:00

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description

description
Rotate images by any angle and flip horizontally or vertically.

Rotate & Flip

Rotate images by an arbitrary angle and/or flip them horizontally or vertically. Rotation and flip operations can be combined in a single request.

API Endpoint

POST /api/v1/tools/rotate

Accepts multipart form data with an image file and a JSON settings field.

Parameters

Parameter	Type	Required	Default	Description
angle	number	No	`0`	Rotation angle in degrees (clockwise). Accepts any numeric value.
horizontal	boolean	No	`false`	Flip the image horizontally (mirror)
vertical	boolean	No	`false`	Flip the image vertically

Example Request

Rotate 90 degrees clockwise:

curl -X POST http://localhost:1349/api/v1/tools/rotate \
  -H "Authorization: Bearer si_your-api-key" \
  -F "file=@photo.jpg" \
  -F 'settings={"angle": 90}'

Flip horizontally:

curl -X POST http://localhost:1349/api/v1/tools/rotate \
  -H "Authorization: Bearer si_your-api-key" \
  -F "file=@photo.jpg" \
  -F 'settings={"horizontal": true}'

Rotate and flip together:

curl -X POST http://localhost:1349/api/v1/tools/rotate \
  -H "Authorization: Bearer si_your-api-key" \
  -F "file=@photo.jpg" \
  -F 'settings={"angle": 45, "vertical": true}'

Example Response

{
  "jobId": "a1b2c3d4-e5f6-7890-abcd-ef1234567890",
  "downloadUrl": "/api/v1/download/a1b2c3d4-e5f6-7890-abcd-ef1234567890/photo.jpg",
  "originalSize": 2450000,
  "processedSize": 2480000
}

Notes

Rotation is applied first, then flip operations.
Non-90-degree rotations (e.g. 45 degrees) will enlarge the canvas to fit the rotated image, with transparent or black fill depending on the output format.
Common values: 90, 180, 270 for quarter-turn rotations.
EXIF orientation is auto-applied before processing, so the rotation is relative to the visual orientation.

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