TontonTools

Watermark Adder

Add watermarks to images — protect and brand your photos.

100% Free No signup Privacy-friendly Image Tools
Updated Sep 2026

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How to use Watermark Adder

  1. Upload your image.
  2. Add the mark — text (name, brand, ©year) or logo.
  3. Position and tune opacity — bottom-right at 30-50% is the tasteful default; across-subject for hard protection.
  4. Download the watermarked copy — publish it; archive the clean original.

What is Watermark Adder?

A watermark adder overlays identifying marks — text (your name, brand, ©) or a logo — onto images before publication. The mark travels with the image wherever it's reposted, providing attribution that survives the copy-paste economy and a deterrent against commercial misuse.

Watermarking is a balance: strong enough to identify and deter, subtle enough not to ruin the image. The craft conventions — corner placement, 30–50% opacity, size proportional to the image — encode that balance.

About the Watermark Adder

Upload the image, add your mark — text or logo, positioned and opacity-tuned — and download the watermarked copy.

Who watermarks and why: photographers protecting portfolio work (attribution on every repost, and proof-of-authorship convenience), businesses branding product and social images (marketing reach on every share), and creators of chart/infographic content whose work circulates detached from its source. Placement wisdom: corners for aesthetics (bottom-right is convention), across the subject for maximum protection (proofs and previews — ugly on purpose), and semi-transparent center-tiling for stock-style protection.

Honest security framing: watermarks deter casual misuse and preserve attribution; they don't stop determined actors (crops and AI removal exist) — the mark's real jobs are attribution-at-scale, professionalism and making theft inconvenient enough to be rare. Keep unmarked originals archived; watermark exports per destination. Files are processed and returned, not stored.

Frequently Asked Questions

Bottom-right corner at modest opacity is the aesthetic convention. For protection over beauty (previews, proofs), across the subject where cropping can't remove it. Edge marks are trivially croppable — that's their accepted trade.
30-50% — visible on inspection, unobtrusive at a glance. Full-opacity marks read as aggressive; sub-20% marks vanish on busy backgrounds.
They deter casual reuse and keep attribution attached — the realistic goals. Determined actors crop or AI-erase marks; the protection is friction plus provable authorship, not cryptographic.
Logo for brand recognition (needs a clean transparent PNG); text for flexibility and legibility at small sizes (© YourName YYYY is the classic). Many creators use logo on portfolio work, text on everything else.
Portfolio/commercial work: yes. Casual shares: judgment call — marks add friction to resharing, which is cost as well as protection. Whatever you decide, always archive unmarked originals.

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