写真に著作権ウォーターマークを一括追加する方法
Protect your photography from copyright theft. Add custom text watermarks and transparent logo overlays to batches of photos in seconds.
Content scrapers and automated AI bots harvest photography across social media and portfolio sites daily. Adding subtle, professional copyright watermarks discourages unauthorized reuse.
With ILoveImages' Watermark Image tool, you can apply custom text or PNG logo overlays across dozens of photos at once with customizable positioning, opacity, and tiling.
By utilizing modern browser WebAssembly and HTML5 Canvas pipelines, ILoveImages processes every image locally inside your device memory. This eliminates upload bottlenecks, protects your confidential files from third-party server exposure, and provides lightning-fast execution even on high-resolution camera files.
Copyright Watermark Protection Demo
Side-by-side visual comparison • Instant on-device result
Figure 1: Visual comparison of original unprotected photo and copyright-guarded photo with translucent watermark branding.
Watermark Photos Free主な機能と特長: Watermark Image
従来のデスクトップソフトやクラウドサービスと異なり、ILoveImages Watermark ImageはWebAssembly技術を活用してブラウザ内で高速・安全に動作します。主な特長は以下の通りです：
- Flexible Watermark Types: Support for crisp custom text watermarks, logo PNG overlays, and repeating tiles.
- Opacity & Blend Controls: Adjust transparency to protect photos subtly without obscuring image details.
- Batch Watermark Engine: Apply consistent copyright branding across hundreds of catalog or portfolio photos at once.
- Full Resolution Preservation: Watermarks are rendered on original resolution canvases without downsampling.
簡単ステップガイド: Watermark Image
ソフトウェアのインストール不要、完全なプライバシー保護のもとで、ブラウザ上から数秒で完了する簡単手順です：
Watermark Your Photos Free in Seconds
Protect your portfolio with custom text and logo branding.
よくある質問 (FAQ)
Can I tile my watermark across the entire photo?
Yes, the repeating tile pattern feature covers the entire surface to deter crop-based theft.
Can I use these tools completely offline without an internet connection?
Yes! Once you visit ILoveImages or install it as a PWA, all core scripts and WebAssembly modules are cached locally in your browser's service worker, allowing you to edit photos anywhere, even in airplane mode.
Are my uploaded photos or edits stored on any server?
Never. ILoveImages is built with a zero-server-upload architecture. Every pixel calculation occurs strictly in your browser's local sandbox memory.