Invisible Watermark Extractor pulls an embedded watermark out of a watermarked PNG image. Send one binary file in the request body, and you get the extracted result back as binary output.
Use it when you need to recover hidden ownership or tracking data from images that were marked before distribution. The endpoint is focused on PNG inputs up to 20 MB, so it fits workflows where images are uploaded from a browser, storage bucket, or moderation pipeline and need to be checked for embedded marks.
Because the response is binary, you can pass the result directly into your own storage, decoding, or review step without converting it first. That makes it useful for content provenance checks, internal asset handling, and automated image inspection where watermark presence matters.
Upload a watermarked PNG image to extract its invisible watermark.
curl -X POST "https://api.eu.apyhub.com/dosvak/extract-invisible-image-watermark" \
-H "apy-token: $APY_TOKEN" \
-F "file=@/path/to/watermarked-image.png"Returns a binary file response (string with format: binary). The API sends the extracted result as raw binary data, not JSON.
Loading your default key…Extracts an invisible watermark from an uploaded PNG image and returns the extracted result as a binary file.
| Parameter | Type | Mandatory | Description |
|---|---|---|---|
| file | String | Yes | Watermarked PNG image. Binary upload. Maximum size: 20 MB. |
Returns a binary file as the success response. The output schema is a single binary string, so there is no JSON wrapper or named response field to document.
Max 100MB total per request (all files combined). Larger? Use this API's URL-based endpoint instead, if it has one.
bad_requestRequired parameter missing or malformed body.
unauthorizedAPI key missing, revoked, or not authorized for this service.
rate_limitedYour plan's per-second rate exceeded. Retry with exponential backoff.
upstream_busyBackend temporarily unavailable. Try again in a few seconds.