Add Text to Image API
Captions with Google Fonts, stroke, shadow, alignment, rotation and curved text.
Environment
| Environment | Base URL |
|---|---|
| Production | https://api.sadafiles.com/v1 |
There is one environment and no sandbox, so every request here is real and counts toward your limits.
Request
POSThttps://api.sadafiles.com/v1/tools/add-text-to-image
- Content type
- multipart/form-data
- Auth
- X-API-Key with tools:run
- Accepts
- jpg, png, webp, avif, gif, bmp, tiff, heic and 1 more
- Files per request
- 1
- Largest file
- 2 GB
- Job timeout
- 120 s
- Rate weight
- 2 units
Parameters
Send these as a JSON string in the options form field. Anything else is rejected.
| Name | Type | Default | Allowed |
|---|---|---|---|
text | string | Hello | — |
font | string | Sora | — |
size | integer | 48 | min 6, max 400, px |
color | string | #FFFFFF | — |
stroke | string | #000000 | — |
strokeWidth | integer | 0 | min 0, max 20 |
shadow | boolean | true | — |
position | string | bottomCenter | topLeft, topCenter, topRight, middleLeft, middleCenter, middleRight, bottomLeft, bottomCenter, bottomRight |
rotation | integer | 0 | min -180, max 180 |
curve | integer | 0 | min -100, max 100 |
Response
| Status | Body | When |
|---|---|---|
201 | same | The run finished within 60 seconds |
202 | Job summary JSON | Still running; poll the job |
4xx, 5xx | Error JSON | See error codes |
A file response carries X-Sada-Job and X-Sada-Expires-At. For long work, post to /v1/tools/add-text-to-image/jobs instead. See jobs and webhooks.
Also runs on the device
In the web tool and apps, Add Text to Image can run locally with no upload. The API always processes on the server.
Try it yourself!
Pick a file, set the options and run a real request with your key. The code follows your changes.

