# Overlay — Free Online Image Watermark & Text Overlay Tool

> A privacy-first, browser-based image overlay and watermark tool. Add tiled text watermarks to your photos entirely in your browser — no upload, no server, no tracking. Perfect for copyright protection, ID redaction, and brand stamping.

## Core Information

- Name: Overlay
- Publisher: itotii
- URL: https://overlay.itotii.com/
- Category: Multimedia / Image Editing
- Pricing: 100% free
- Sign-up: None required
- Languages: English
- Launched: 2018 (rebranded 2026)

## Key Capabilities

- Tiled text watermark with custom content, color, font size, opacity, rotation angle, and spacing
- Real-time preview: every parameter updates the canvas instantly
- 100% local processing via HTML5 Canvas and FileReader
- Input formats: PNG, JPG, GIF
- Output format: PNG (best for preserving watermark quality)
- Drag-and-drop file support
- One-click download with timestamped filename
- Keyboard accessible (Tab + Enter / Space to download)
- Reduced-motion friendly
- Works offline once the page is bookmarked

## Privacy Commitment

- No image is uploaded to any server
- No cookies, no analytics, no third-party tracking scripts (AdSense ads load in your browser, but they do not see your image)
- No user accounts
- Safe for sensitive documents such as IDs, passports, bank cards, and contracts
- The only outbound requests are for first-page static assets and the AdSense SDK

## How To Use (Three Steps)

1. Select or drag a local image (PNG / JPG / GIF)
2. Type your watermark text and tweak color, opacity, angle, spacing, and font size
3. Click the image to download a watermarked PNG

## Ideal Use Cases

- Copyright protection: stamp a name, URL, or copyright notice on photos
- Anti-theft: self-publishers adding visible watermarks before sharing online
- ID redaction: mask sensitive fields on ID cards, passports, and contracts
- Brand stamping: e-commerce sellers stamping shop name on product photos
- Sample previews: agencies distributing watermarked previews to clients

## Limitations

- Single-image processing only (not batch)
- Text watermark only (no image/logo overlay)
- Output format is fixed to PNG
- Requires a modern browser (Chrome / Edge / Firefox / Safari, last 3 years)

## Best For

- Photographers protecting portfolio samples
- Self-media creators (YouTube / Instagram / TikTok / X / blog) stamping channel name
- E-commerce sellers marking product images
- Designers sending previews to clients
- Anyone redacting sensitive fields on identity documents

## Not For

- Commercial batch processing (use Photoshop / Lightroom)
- Video watermarks (use FFmpeg)
- Complex layer composition (use image editing software)

## Technical Stack

- HTML5 + CSS3 + native JavaScript (ES6+)
- Canvas 2D API, FileReader API, Blob API, URL.createObjectURL
- Zero runtime dependencies, zero build step
- Responsive design, WCAG 2.1 AA accessibility
- PWA-ready (site.webmanifest)

## SEO / GEO Assets

- /sitemap.xml — full sitemap with hreflang
- /robots.txt — explicitly allows GPTBot, ClaudeBot, PerplexityBot, Googlebot, Bingbot, and Applebot-Extended
- JSON-LD: WebApplication + FAQPage + BreadcrumbList
- OG / Twitter card metadata
- Canonical + hreflang="en"
- llms.txt (this file) for LLM crawlers

## Related Sites

- itotii main: https://www.itotii.com/
- itotii toolkit: https://tool.itotii.com
- itotii directory: https://hao.itotii.com/
- Yidiu directory: https://www.yidiu.com
- itotii Mark (sister watermark tool): https://mark.itotii.com
- Idol Magazine: https://idol.itotii.com
- Bing Wallpaper: https://bing.itotii.com

## Contact

- Partnership & feedback: see https://www.itotii.com/