Tutoriels4 min de lecture

Ajouter un filigrane sur des photos en lot

Protect your photography from copyright theft. Add custom text watermarks and transparent logo overlays to batches of photos in seconds.

ILoveImages Editorial Team

Image Processing & Privacy Specialists

12 oct. 2026

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 - Unprotected Photography visual comparison (Vulnerable to Theft) before using watermark photos free — Figure 1: Visual comparison of original unprotected photo and copyright-guarded photo with translucent watermark branding.
Watermark Photos Free

Copyright Watermark Protection Demo - Watermarked Output visual comparison (Copyright Signature) after using watermark photos free — Figure 1: Visual comparison of original unprotected photo and copyright-guarded photo with translucent watermark branding.
Watermark Photos Free

Fonctionnalités clés: Watermark Image

Contrairement aux logiciels de bureau classiques ou aux services cloud, ILoveImages Watermark Image s'exécute 100% dans votre navigateur grâce au WebAssembly et au Canvas. Voici ses atouts majeurs :

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.

Guide étape par étape: Watermark Image

Suivez ces étapes simples pour finaliser votre tâche en quelques secondes directement dans votre navigateur, sans installation et en toute confidentialité :

Ouvrez l'outil ILoveImages Watermark Image directement dans votre navigateur.

Glissez-déposez vos images dans l'éditeur ou cliquez pour sélectionner des fichiers (traitement 100% local en mémoire, zéro transfert vers un serveur).

Choose between 'Text Watermark' (type custom copyright notice, select font, color, opacity) or 'Image Watermark' (upload your PNG logo). Adjust placement or use full tiled grid.

Preview the watermarked photo across the canvas and verify logo positioning, transparency, and legibility.

Cliquez sur Télécharger pour enregistrer instantanément votre image traitée, ou sur 'Télécharger en ZIP' pour un lot complet.

Conseil de pro:Need to process multiple pictures? You can select and upload dozens of photos at once. ILoveImages processes the entire batch simultaneously in parallel using your computer's local hardware acceleration!

Watermark Your Photos Free in Seconds

Protect your portfolio with custom text and logo branding.

Essayer l'outil gratuitement

Foire Aux Questions

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.