The honest starting point
Let's start with the uncomfortable truth: what a browser displays can be copied. An image visible online technically sits on the viewer's device — a screenshot is enough. So the goal isn't impossible perfect protection, but two things: raise the barrier (make theft unattractive) and keep authorship provable (for the worst case). Anything promising more is a false sense of security.
What only gives a feeling of security
- Right-click block: bypassed in two moves — and annoys real users more than thieves.
- "Prevent saving" scripts: the image is still in the page source and the browser cache.
- A transparent overlay over the image: only stops casual right-clickers, not the screenshot.
These tricks cost effort and usability without real protection. You can skip them.
What actually raises the barrier
1. Watermarks
The most effective visible means. An opaque, ideally tiled and diagonal watermark makes an image unattractive for unauthorized use and shows authorship at the same time. A thief would have to retouch it laboriously — the more subtle the watermark, the easier; the more present, the harder. The watermark tool applies it browser-local.
2. Publish only downscaled versions
For web display, 1600–2000 px is enough. If you put only such downscaled versions online, you keep the high-resolution originals — needed for print and large-format use — to yourself. The theft of a small web version is thus worth little; it's no good for a poster.
3. Set author metadata
You can enter author, copyright, and contact into the IPTC/EXIF metadata. That's not copy protection (metadata can be removed), but a proof of authorship that travels in the original and strengthens your position in a dispute. Large platforms often strip metadata on upload — but in the passed-on original they remain.
Preparation for the worst case
The best protection helps little without provable authorship. So:
- Keep the original files — with capture metadata, RAW files, the unedited versions. They prove you have the original.
- Document publications — when you first showed the image and where.
If you find your image elsewhere, secure evidence first (a screenshot with URL and date) before the other side can remove it. What happens then — from a friendly request through a license claim to legal steps — depends on the case; for real commercial damage, professional advice pays off.
The realistic attitude
Perfect protection is impossible — but most image thieves look for the easy way. A watermark, downscaled web versions, and documented originals deter casual use and give you a strong position in the worst case. You can't guarantee more, and you shouldn't do less. To protect your best work, publish it deliberately — not at full resolution, not without a watermark, not without proof.
Frequently asked questions
Can I fully protect my images online from theft?
No — what's displayed in the browser can be copied. Right-click blocks, disabling saving, and similar tricks are easily bypassed and give only a false sense of security. The realistic goal isn't impossibility but raising the barrier and making tracing easier.
Do watermarks help?
Yes, as a visible sign and deterrent — especially an opaque, tiled watermark is hard to remove. It makes images unattractive for unauthorized use and shows authorship at the same time. It doesn't make an image theft-proof, but it raises the barrier considerably.
Should I put my images online smaller?
For pure web display, lower resolutions are enough (about 1600–2000 px). If you publish only downscaled versions, you keep the high-resolution originals — needed for print and large-format use — to yourself. The theft of a small web version is worth less.
What do I do if I find my image somewhere else?
Secure evidence (a screenshot with URL and date), have the original with capture metadata at hand, and check the proof of authorship. Whether and how to proceed — a friendly request, a license claim, or legal steps — depends on the case; for commercial damage, professional advice pays off.