Where to put a watermark so a quick crop can't remove it

2026-10-21

You put your name in the corner of your photos before posting them. A week later one turns up on someone else's page — same photo, slightly tighter framing, no name. It took them one crop. A corner watermark is a polite signature, not protection, and it's worth understanding exactly why before choosing where yours goes.

How our watermark is placed

Our watermark tool writes one line of text into the image itself, in bold, and offers five positions: the four corners and the centre.

• Size is a percentage of the image's short side: at the default 5%, a 6000×4000 photo gets text 200 pixels tall, and a 1200×800 one gets text 40 pixels tall. The same setting gives the same visual proportion on every image in a batch, whatever their resolutions.
• Corner positions sit inset from the edges by 0.6 times the text size.
• The centre position puts the text in the middle of the image, both ways.
• Opacity runs from 10% to 100% (55% by default), and the text is white or black, with a soft shadow in the opposite tone behind it so it stays readable on busy backgrounds.

Why a corner mark is a one-crop job

With those numbers you can work out what removing a corner mark takes. Text at the default 5% of the short side, inset by 0.6 times its own size, sits entirely within less than a tenth of the short side from the top or bottom edge. Trim that strip — a crop most viewers would never notice, since it barely changes the framing — and the mark is gone, with the photo intact.

Making the corner text larger widens that strip, but the principle doesn't change: a mark at the edge can be cut away together with the edge.

The centre: harder to remove, harder to ignore

A centred mark can't be cropped away without cutting out the middle of the picture, which is usually the reason anyone wanted it. To remove it, someone has to retouch it out, and that is real work on a large, visible mark. That makes the centre the only one of the five positions that resists a quick crop.

The cost is obvious: it sits over your subject. Everyone who looks at the image sees it, including the people you actually want to impress. That's the trade-off you're choosing between.

Balancing protection and intrusion

• Portfolio previews, stock-style proofs, client drafts: centre, at a moderate size and fairly low opacity — clearly present, but the image still reads through it. This is where the "can't be cropped" property earns its intrusion.
• Social posts and finished work: a corner, at the default size. You're crediting the work, not defending it; accept that a determined person can crop it.
• Somewhere in between: a larger corner mark makes the crop more visible, since a bigger strip must go — but it never makes it impossible.

Two smaller notes. Very faint, very small marks are the easiest to retouch away, so if protection is the point, don't drop opacity to the bottom of the range. And watermark a copy: the text is written into the pixels and can't be taken out again, so keep your clean original.

The whole batch at once

Drop in as many images as you like; the same text, position, size and opacity apply to all of them, scaled to each image's own short side. Download them one by one or as a ZIP. If you also need the images resized, batch edit can resize and watermark in one pass — the watermark goes on after the resize so the text stays sharp. Nothing is uploaded either way.

What the tool doesn't do

It writes one line of text in one place. There's no repeating, tiled pattern across the whole image and no image-logo overlay. A single centred line is the strongest placement it offers — and for most uses, the right balance anyway.

The short version

• At the default size, a corner mark lives within a tenth of the short side from the edge — one crop removes it.
• Only the centre position resists a quick crop; it costs visibility of your subject.
• Size scales with each image's short side, so batches look consistent.
• Watermark copies, keep the originals clean.