Add a Watermark to Images

Where you place a watermark determines how much protection it actually buys. A small corner mark is trivially defeated: modern inpainting tools reconstruct an isolated corner in seconds because the surrounding area tells them exactly what should be there. A watermark tiled diagonally across the entire frame is a different proposition - the repeating mark crosses faces, products and textured detail, so removing it means reconstructing the subject itself, which fails visibly far more often. If deterrence is the goal, tile; reserve the corner mark for polite attribution.

Opacity is the other half of the trade-off. A mark at 15 to 30 percent opacity signals ownership while leaving the photograph enjoyable; heavier opacities read as hostile and can hurt engagement when the images are meant to attract clients. A useful compromise for photographers sharing proofs: a tiled mark at low opacity across the frame, plus one clearer mark near the subject.

Batch mode is where this tool earns its keep. Apply one watermark configuration - same text or logo, same placement, same opacity - to dozens of images in a single run, and the results arrive as one zip file rather than a click-per-photo download marathon. Consistency across a set matters, too: a mark that wanders between corners from photo to photo looks careless in a portfolio.

One caution before you watermark everything you own: the major marketplaces explicitly prohibit watermarks on product listing photos - Amazon, eBay and Etsy all reject or suppress marked listing images. Watermark the copies you share on social media and portfolio sites, and keep listing photos clean.