Image Watermarker
Add text or image watermarks to your photos with customizable positioning, opacity, and rotation. Protect your images with professional watermarking features. Supports batch processing and works with PNG, JPG, WEBP formats.
Upload Images
Drag and drop images
or click to select files
Supports PNG, JPG, WEBP and other image formats
About Image Watermarker
- • Add text or image watermarks to your photos
- • Watermarks are applied in a tiled pattern across the entire image
- • Customize opacity, rotation, spacing, and size
- • Process multiple images at once with batch watermarking
- • Download individual images or all at once as a ZIP file
- • All processing happens in your browser - your images never leave your device
About Image Watermarker
The Image Watermarker adds professional text or image watermarks to photos with complete customization control over positioning, opacity, rotation, and styling. This tool protects your intellectual property while maintaining image quality and supports batch processing for multiple images.
Why use a Image Watermarker?
Watermaking protects your images from unauthorized use, establishes copyright ownership, and promotes your brand or business. Professional watermarks deter image theft while maintaining the visual appeal of your photos, essential for photographers, artists, and content creators sharing work online.
Who is it for?
This tool is essential for photographers protecting their work, artists preventing unauthorized use, content creators establishing brand presence, and businesses adding logo watermarks to marketing materials and product images.
How to use the tool
Upload images by dragging and dropping files or clicking 'browse files' to select from your device.
Choose your watermark type: 'Text Watermark' or 'Image Watermark' using the toggle buttons.
For text watermarks: Enter custom text, choose from 10 font families, adjust size (8px-120px), and select color.
For image watermarks: Click 'Choose Image' to upload your logo or watermark file and preview it.
Customize watermark appearance: adjust opacity (5%-100%), rotation (-180° to +180°), and spacing (20px-200px).
For image watermarks: adjust scale (5%-50%) and use Mirror options for visual effects.
Watermarks are applied automatically and the preview updates in real time; use the Show Original / Show Watermarked toggle to compare.
Navigate between multiple images using the thumbnail panel with green indicators for applied watermarks.
Download watermarked images individually or use 'Download All Images' for a convenient ZIP file.
Frequently Asked Questions
How do I add a watermark to an image online?
Drag and drop your image file (PNG, JPG, WebP, AVIF). Add text watermark (your name, company, copyright notice) or upload an image watermark (logo, signature). The watermark is always repeated in a tiled pattern across the whole image (there are no corner or centre placements); adjust opacity, size, spacing and rotation. The preview and result update automatically, then download. Watermarking runs entirely in your browser and your images are never uploaded. The output keeps the input's format and pixel size (GIF, AVIF, BMP and SVG inputs are saved as PNG).
Will watermarking reduce image quality?
Slightly — the image is decoded, modified to overlay the watermark, then re-encoded. For JPEG and WebP outputs, this re-encoding at quality 92 introduces a small perceptual loss. For PNG outputs, the re-encoding is lossless except for the watermark overlay itself. The visible quality difference is dominated by the watermark choice (opacity, size) rather than re-encoding. For high-quality archival originals, watermark a copy and keep the unwatermarked source untouched.
Are my images uploaded to a server?
No. Watermarking runs entirely in your browser using the canvas API. Your image (and any logo you add as a watermark) is never sent to a server, and you can confirm this in your browser's Network tab.
Can I customize the watermark style?
Yes — for text watermarks: font (10 families), size (8-120 px), colour, opacity (5-100%; 30-60% is typical for a subtle effect), rotation angle (-180° to 180°, e.g. 30° diagonal) and spacing (20-200 px). For image watermarks: scale (5-50% of the image), opacity, rotation, spacing and horizontal/vertical mirroring. The watermark is always tiled across the entire image at the chosen spacing; you can't place a single watermark in a corner or the centre.
What position is best for a watermark?
Depends on intent. This tool only offers a repeating tiled pattern, so the choices are about spacing, size and opacity. (1) Discreet attribution — wide spacing, low opacity (around 30%) and small text or logo. Visible to attentive viewers, doesn't dominate. (2) Strong copyright protection — a diagonal pattern with tighter spacing at 40-60% opacity. Harder to remove via cropping. The trade-off: more visible = stronger protection but worse aesthetics. Test on a sample image first.
Can someone remove the watermark?
A determined adversary can usually remove or disguise watermarks via cropping (corner watermarks), masking (centred watermarks over a busy area), or AI-based inpainting (sophisticated tools). Watermarks deter casual misuse but aren't unforgeable. For stronger protection, combine: watermarks + low-resolution previews + DMCA enforcement + tracking via reverse-image-search services. For ironclad protection, don't publish high-resolution originals — only show watermarked previews and license the unwatermarked version separately.
Can I watermark multiple images at once?
Yes — add several files and the same watermark settings apply to all of them; download them individually or as a ZIP. The watermark settings are shared, so per-image watermarks (per-customer signatures, per-product identifiers) need to be done one image at a time.
When should I add watermarks?
Common cases. (1) Copyright protection for photographers and artists publishing online. (2) Brand identification — adding a logo to product photos for social media. (3) Watermarking proof prints or proofs sent to clients before final delivery (preventing unlicensed use). (4) Drafts/work-in-progress markings on shared documents. (5) Discouraging screenshots of paid content. For stronger protection, combine with reverse-image-search services and DMCA monitoring.
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