Image Watermark Tool

Online Image Watermark Tool is a free, browser-based tool for adding text, logo, or tile watermarks to your images — ideal for copyright protection, brand identity, and internal document labeling. No software installation required, and your images are never uploaded to any server — all processing happens locally in your browser, keeping your files private and secure.

Core Features

• Text Watermark: Add single or multi-line text watermarks with full control over font (including Microsoft YaHei, Arial, Georgia, and more), font size (12–200px), color, opacity, rotation, bold, italic, and stroke effects.
• Image / Logo Watermark: Upload a local PNG or JPG image as your watermark. Adjust its size relative to the base image width, set opacity, and rotate it freely. Ideal for brand logos or signature stamps.
• Tile Watermark: Repeat text or image watermarks across the entire image in a grid pattern. Control rotation angle and horizontal/vertical spacing to suit copyright protection or document classification needs.

Positioning Options

• Grid Positioning: Choose from 9 standard positions (top-left, center, bottom-right, etc.) with optional X/Y pixel offset fine-tuning.
• Free Drag: Drag the watermark anywhere on the live preview canvas for pixel-perfect placement.

Quick Presets

Five built-in presets let you get started instantly: Diagonal Text, Bottom-Right Corner, Full Tile, Subtle, and Bold — apply with a single click.

Batch Processing & Download

Upload up to 20 images at once and apply the same watermark settings to all. Download individually or export all as a ZIP archive. Output formats include JPG, PNG, and WebP, with adjustable quality for JPG and WebP.

Who Is This For?

• Photographers protecting their work with copyright watermarks
• Businesses marking internal documents with confidentiality labels
• E-commerce sellers batch-watermarking product images with store logos
• Content creators branding their visual content

FAQ

Are my images uploaded to a server?

No. This tool runs entirely in your browser. Your images never leave your device.

What image formats are supported?

You can upload JPG, PNG, WebP, and GIF images. Output formats are JPG, PNG, and WebP.

Are my watermark settings saved?

Yes. Your last-used settings are automatically saved in your browser's local storage and restored on your next visit.

What is the difference between a single watermark and a tile watermark?

A single watermark is placed at one specific position on the image. A tile watermark repeats across the entire image in a regular grid pattern, which is better suited for copyright protection.