What is the Picnie image processing API?

A set of REST endpoints for resize, compress, convert, remove-background, watermark and related image operations. You call one operation per request with an API key.

Is there an official SDK?

Picnie does not ship an official SDK. Send an HTTP POST with your API key in the Authorization header.

How do I process a catalog?

Browser batch tools accept about 100 images per run, 25 MB each. The REST API takes one image URL per call. Automation workflows can run remove-background, resize, compress and watermark as separate steps and notify you with a webhook.

Can Picnie write results to my S3 bucket?

Each REST call sends one public image URL. The response includes a result URL. Picnie does not write files into your S3, R2 or GCS bucket.

REST API

Bulk image processing API

Picnie is a hosted REST API for resize, compress, convert, background removal and watermarking. Send an API key and one public image URL per request. There is no official SDK, and one request does not chain every operation.

Get an API key Developer overview API reference

Operations

Browser batches are about 100 images, 25 MB each, on the tools that publish that limit. Automation workflows can run these steps separately and send a webhook when a run finishes.

Resize

Resize Image

POST /resize-image

API details

Compress

Compress Image

POST /compress-image

API details

Convert

Convert Image

POST /convert-image

API details

Remove background

Remove Background

POST /remove-background

API details

Watermark

Add Watermark Image

POST /add-watermark-image

API details

Versus ImageMagick

Hosted REST calls compared with running ImageMagick yourself.

Read the comparison

Resize Image

POST /resize-image

Authorization header with your API key
Formats: Depends on the endpoint. See each operation page.
Limit: About 100 images per browser batch where that tool documents it. One image URL per REST call.

Endpoint docs API overview Catalog processing

curl -X POST https://picnie.com/api/v1/resize-image \
  -H "Authorization: YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "project_id": 1,
    "image_url": "https://picnie.com/data/raw_images/demo_bg1.jpg",
    "width": 1080,
    "height": 1080
  }'

Questions

REST, no SDK

Call the endpoint from any HTTP client.

Create an API key, then use the reference and Postman collection.

Get an API key API reference