Watermarking the only copy and losing the clean original, which leaves you unable to supply a marketplace-compliant file.
Editing and retouching
Watermark
Also called image watermark, photo watermark or logo overlay. Here is what it means, when it changes what you export, and what people get wrong.
Editing and retouchingRuns on your deviceUpdated 10 August 2026
The short answer
A watermark is a mark placed over an image to show who owns it, usually a semi-transparent logo, name or web address. There is also invisible watermarking, which hides an identifier inside the pixel data so ownership can be traced without spoiling the picture.
Updated
The short version
Watermark at a glance
| Quick fact | Detail |
|---|---|
| Two types | Visible overlay and invisible (forensic) |
| Typical opacity | Roughly 15 to 40 per cent |
| Banned on | eBay and Amazon listing images |
| Protection level | Deterrent only, since marks can be removed |
| Always keep | An unwatermarked master file |
Slide the table sideways to see every column.
Visible or invisible: which kind do you need?
A visible watermark deters casual copying and carries attribution wherever the image travels. It is standard on proofs sent to clients before payment, and on portfolio work shared publicly. The cost is that it covers detail, it dates quickly when branding changes, and it can be cropped off or painted out by anyone who wants to.
An invisible watermark embeds an identifier in the image data itself, designed to survive resizing and recompression to some degree. You cannot see it, so it does not protect anything on its own; it lets you demonstrate afterwards that a particular copy came from you. The same techniques are increasingly used to label AI-generated images. Detecting one needs the matching software, so it is a forensic tool rather than a deterrent.
Why do marketplaces ban watermarks on listing images?
Because listing photos are meant to show the product, not the seller. eBay's picture guidance rules out added graphics, badges, logos and watermarks on listing pictures, and Amazon's product image requirements state that the main image must carry no text, logos, watermarks or borders. Marketplaces enforce this so that search results look consistent and buyers are not steered off-platform.
The practical consequence is that the watermarked version of a photo is not the version you upload. Keep an unmarked master, publish marked copies where a watermark genuinely helps such as your own site, social posts or client proofs, and upload clean files to marketplaces.
How do you add a watermark without wrecking the image?
The aim is legible but unobtrusive. A few habits that hold up:
- Keep opacity low, commonly somewhere in the region of 15 to 40 per cent, so the mark reads without dominating.
- Place it over a busy or unimportant area rather than across the subject's face or the product's key detail.
- Size it in proportion to the image, so it does not disappear on a thumbnail or swamp a small crop.
- Decide between a corner mark, which is easy to crop away, and a tiled or centred mark, which is harder to remove but more intrusive.
- Batch the job so the position and scale stay identical across a set, and never overwrite the originals.
When is it acceptable to remove a watermark?
Only on images you own or are licensed to use. Legitimate cases are ordinary: clearing your own outdated logo from a back catalogue, removing a proofing mark from a shot you have paid for, or tidying a client's supplied file with their permission.
Taking a watermark off someone else's photograph in order to use it is copyright infringement, and it is precisely what the mark exists to prevent. Object removal tools, Photomop's included, can erase a mark from pixels, but no editing step transfers a licence. If you do not have the rights, the answer is to license the image or shoot your own.
What people get wrong about watermark
Each one is a real failure mode, not a style preference.
Placing the mark in a corner where a single crop removes it entirely.
Uploading watermarked photos to eBay or Amazon listings, where added logos and watermarks are not allowed.
Treating an invisible watermark as protection, when it only helps prove origin after the image has already been taken.
Questions people ask
Watermark, answered
The follow-up questions people search for once they have the definition.
Do watermarks actually stop people stealing photos?
They deter casual copying, which is worth something. They do not stop anyone determined, because a mark can be cropped, cloned out or removed with editing tools. Treat a watermark as a speed bump and attribution device rather than as protection.
Can I put a watermark on my eBay or Amazon listing photos?
No. eBay's picture guidance rules out added graphics, badges, logos and watermarks, and Amazon's product image requirements state the main image must have no text, logos, watermarks or borders. Upload clean images and keep watermarked versions for your own channels.
Is it legal to remove a watermark from an image?
It depends entirely on the rights. Removing your own mark, or one from an image you have licensed with permission to do so, is fine. Removing someone else's mark to use their photograph is copyright infringement, whatever tool performs the edit.
What opacity should a watermark be?
Most people land somewhere between 15 and 40 per cent. Below that it disappears on busy images, above it competes with the subject. Test on your lightest and darkest photographs, since a mark that reads well on a dark shot can be invisible on a pale one.
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Sources
Where the facts on this page come from. Every link opens the specification, standard or documentation the claim was read at.
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