Protect your creative assets with custom text watermarks. 100% client-side · No uploads · Bulk ZIP export. Drag & drop images, toggle batch preview, and watermark in seconds.
Drag & drop image here
or click to selectDrag & drop multiple images here
or click to select filesWatermarking helps identify the source of an image and can discourage unauthorized reuse. It is a common practice among photographers, designers, and content creators to add a copyright notice or brand name. While watermarking does not prevent all misuse, it provides a visible claim of ownership and may assist in brand recognition.
⚡ Performance note: Batch watermarking speed depends on image resolution and your device’s hardware. Processing 20–30 high-resolution images typically completes within seconds to a minute.
Simply drag image files from your desktop onto the upload zone. For batch mode, drag multiple files at once. The queue updates immediately, and you can remove individual images. The optional preview toggle lets you disable live rendering to save resources when working with large batches—all watermark settings remain active and will be applied during ZIP generation.
Content creators often use this tool to add consistent branding to social media graphics, real estate photos, or product catalogs. Because all processing is local, sensitive or private images never leave your computer.
When you click "Generate ZIP", the tool sequentially processes each image in memory: it loads the original image into an offscreen canvas, applies the watermark using your selected parameters (font, opacity, rotation, shadow, position, offset), exports as a lossless PNG, and adds it to a JSZip archive. The progress bar updates in real time. Because everything runs locally, there is no file size limit beyond your device's available memory — however, very large batches or extremely high-resolution images may affect performance. For optimal results, we suggest limiting batches to around 50–100 images depending on your system.