Image Watermark Tool — Free, Fast & Private
Adding a watermark to every photo before posting protects your work — most stolen images get reuploaded with the watermark still visible. MiniPx Pro's watermark feature applies a text overlay to every output in a batch with one toggle: pick the text, anchor position (9 spots: corners, edges, center), opacity, and size, then compress as normal. The watermark bakes into every output.
Use cases: photographers protecting client previews, designers marking work-in-progress mockups, e-commerce sellers protecting product photos from reposts, anyone posting to social media who wants attribution to follow the image.
The watermark is rendered onto the output canvas before encoding, so it cannot be removed without re-uploading and re-processing the watermarked file (and even then it leaves visible artifacts). For maximum stealth, the small "minipx.com" watermark on free-tier AI tool outputs is the same mechanism — it's baked into the pixels, not embedded as metadata.
Activate via the main compressor's Pro Tools panel. See pricing for the Pro plan.