How to watermark photos for client proofing

Advice about watermarks tends to come in two flavors: put one on everything, or never use one at all. Neither is much help when you have a set of proofs to send tonight. The better question is what the photo is for. Proofing happens to be the case where a watermark has a clear job, as long as it's done with a light hand.

What a proofing watermark is for

A proof is a draft. The client is looking through the set to choose favorites, often before the final edit and sometimes before the final payment. A watermark on a proof says one thing: this is not the finished file.

That does two practical things. It makes the proof a poor substitute for the real delivery, so there's less temptation to print it or post it as is. And if the image gets forwarded to family or a group chat, your name travels with it.

Notice what's missing from that list. A watermark doesn't lock anything. We'll come back to that.

When a watermark hurts

A watermark gets in the way whenever the point is for someone to look at the photo properly.

Your portfolio is the obvious case. Visitors are deciding whether they like your work, and a mark across every image makes that harder. Final files a client has paid for are another. They should be clean.

Proofs can suffer too. A client choosing between two nearly identical frames needs to see expressions, eyes and small details. If the mark sits on a face, they can't make that choice, and you get an email asking for unmarked copies.

Where to put it

Placement is a trade between two things you want.

A mark in a corner stays out of the way and is the easiest to live with. It is also the easiest to crop off. A mark in the center can't be cropped out without ruining the picture, but it lands on the subject more often than not.

For proofs, we'd lean toward the center, or just off it, and make up for the position by keeping the mark faint. For anything public, a small corner mark is enough to act as a signature.

Whichever you pick, use the same position across the whole set. When the mark is always in the same place, the eye learns to look past it after a few photos. A mark that moves around keeps drawing attention to itself.

Some photographers tile a repeating mark across the whole frame. It's the hardest to remove and the hardest to look at, so we'd save it for cases where you have a specific reason to worry.

Opacity and size

There's no correct number here, because it depends on the mark and the photos. What works is a quick test.

Start with the mark more transparent than feels safe, then raise the opacity until you can read it without hunting for it. For a centered proof mark that is usually well under half. A corner signature can be stronger, because it's small.

Then check it against the brightest and darkest photos in the set. A white mark vanishes against a pale sky or a wedding dress, and a dark one disappears into a night scene. If one color can't cover the whole set, a mid-grey or a slightly higher opacity usually can.

For size, think in proportion to the image instead of in pixels. A mark that looks modest on a wide landscape frame can swallow a tight vertical portrait. Size it relative to the frame so it holds up in both orientations.

Finally, look at a proof on a phone. Many clients will open the gallery there, and a mark that reads well on a large monitor can turn into an unreadable smudge on a small screen.

Text or logo

Text is the simpler choice and often the better one. Your name or studio name in a plain typeface stays legible at small sizes and low opacity. Adding the word "proof" helps too, since it explains why the mark is there.

A logo works when it's simple. Use a version with a transparent background, in a single color if you have one. Thin lines and small lettering fall apart once the logo is shrunk and faded, so check it at the size it will be seen at.

What a watermark cannot do

No watermark prevents copying. A corner mark can be cropped. A mark over a plain background can be painted out, and editing software keeps getting better at that. Anyone who can see a photo on a screen can screenshot it.

So treat the watermark as a label and a mild deterrent. If you need real control over proofs, it comes from other places:

• Sending proofs at a reduced resolution, so a copy isn't worth printing.
• Limiting who can open the gallery, and for how long.
• Keeping downloads off until the job is settled.
• A contract that says what the client can do with the images.

Keep your original files as well. They are far better evidence that a photo is yours than any mark laid over a copy.

From watermarked proofs to clean finals

The mistake to avoid is baking a watermark into your only export. Treat the watermarked set as a disposable copy made from your edited originals, with the same filenames, so a client's list of favorites maps straight back to the clean files.

Tell clients up front that the mark is only on the proofs and that finals arrive without it. It saves a worried email.

When the selection is made and the finals are ready, deliver them clean and at full resolution.

How this works in Folio

If you need to mark a single photo, our free watermark tool does it in the browser. Add text or a logo, choose one of nine positions, adjust opacity and size, and download the result. There's no sign-up and the photo is never uploaded.

For a whole shoot, proof galleries in Folio apply your watermark across the gallery, alongside a password, an expiry date and downloads switched off. Paid plans can also set a resolution cap for viewing and downloads. When the finals are ready, you turn off the watermark, enable downloads and publish again. The link you already sent stays the same.

Whatever you use, keep the mark light on the proofs and hand over the finals clean.