Do watermarks stop people stealing your product photos?

A readable brand name or website address can give someone a clue to the source of a shared image. That may be useful for a social post or a preview circulated outside your own shop. It is most useful when the mark is still visible at the size people will actually see.

It does not stop someone copying the file. A corner mark can be left out of a crop, while a larger mark can obscure the very details a customer needs. Even when a mark remains, it does not establish the terms of any licence or settle who owns the underlying photograph.

Ask what success would look like. If you want a customer to recognise your brand when a picture is shared, a mark might help. If you want to guarantee that nobody can reuse the photograph, it cannot deliver that promise.

Google Merchant Center’s main product-image rules prohibit promotional overlays, including watermarks and added logos. Branding that is physically part of the product is treated differently from a logo added to the photograph afterwards. Read the current requirements before editing images that feed into Google Shopping.

For a Shopify store, check which image your channel integration actually submits. Do not assume that changing the first image in the storefront gallery changes every feed in the same way. Review a sample product’s submitted image and status before making a catalogue-wide change.

If you use different images for different channels, remember that a clean image published through another channel is still publicly visible. Keeping it out of your storefront gallery does not make it a private master file.

Make a separate export rather than overwriting the original. View it on a phone, in a product grid and at the product-page zoom size. Check whether the mark hides a texture, an edge, a colour variation or lettering that a buyer needs to judge.

Hypothetical example: a ceramicist puts a pale studio name over the corner of a social photograph. It remains readable without covering the mug. On a small product thumbnail, however, the same mark becomes an unreadable blur. That suggests two different uses need different image choices, not that every product photo needs a larger logo.

Avoid changing all your images while you are still deciding. Test the effect on the actual pages and channel listings, then choose a consistent approach for each use.

For the UK, GOV.UK explains that qualifying original works, including photography, receive copyright protection automatically. It also says marking a work with the copyright symbol does not change the level of protection. A visible notice and ownership of the rights are separate matters.

Keep the original shoot files and any agreements with the photographer. If you use supplier or licensed images, check what you are allowed to do before adding your own branding. Do not make a mark that implies you created an image when you did not.

Keep source files, publication records and permission agreements organised. Publish images that support a good shopping experience without putting editable masters or print-production files in the public catalogue. Make your official shop address easy to find when a customer wants to check where an image came from.

Run occasional image searches using a clear reference and keep a log of useful results. If you find your work elsewhere, check permissions and save the specific listing before deciding how to respond. These steps remain useful whether you choose a watermark or leave the image clean.

Use a watermark only where it serves a clear purpose and fits the channel’s rules. Keep clean exports available for channels that require them, preserve your originals and do not rely on a mark as a barrier to copying.

Copywatch can help with the checking part: it searches for possible matches to products selected from a public Shopify catalogue and lets you review the results. It does not apply watermarks, block image downloads or guarantee that altered images will be found.