Image Watermark
Add text, logo, or tiled watermarks to photos directly in your browser, with fonts, rotation, shadow, stroke, presets, PNG/JPG export, and no upload.
Image Watermark
Add text, logo, or tiled watermarks to photos directly in your browser, with fonts, rotation, shadow, stroke, presets, PNG/JPG export, and no upload.
About the image watermark tool
Text, logo, and tiled watermark modes
Text mode draws one editable mark with font, color, rotation, shadow, stroke, opacity, and a nine-position grid. Logo mode places one uploaded PNG, JPG, or WebP image. Tiled mode repeats text or logo across the whole canvas with adjustable density and diagonal rotation, and presets set common copyright, portfolio, and confidential styles.
Browser canvas output boundary
The original photo, optional logo, preview, copy action, and download are all handled with browser Canvas APIs. Very large images are capped at 4096 px on the longest side; PNG preserves transparent areas, JPG flattens them onto white, and the exported image is rebuilt from pixels rather than original EXIF or color profile metadata.
FAQ
Common questions and answers about this topic.
Are my photos uploaded to a server?
No. The original photo, logo, preview, and export are processed locally in your browser with HTML5 Canvas. The files do not leave your device.
What is the difference between text, logo, and tiled modes?
Text mode places one editable text mark. Logo mode places one uploaded PNG/JPG/WebP image. Tiled mode repeats text or logo across the entire image, useful for confidential drafts.
Why is SVG logo upload not supported?
SVG can embed scripts or external references. To keep the tool safe and simple, this version accepts only PNG, JPG, and WebP logo files.
When should I use tiled or diagonal watermarks?
Use tiled mode for confidential drafts, previews, or client proofs where a single corner mark is easy to crop out. The repeated pattern makes reuse harder.
Should I export PNG or JPG?
Use PNG when you need crisp text or transparent areas. Use JPG for smaller photo files; transparent pixels are flattened onto a white background.