Add Watermark to Image — Free Text & Logo Watermark Tool
Protect your photos with a text or logo mark — nothing is uploaded.
100% in your browser — files never uploaded
How to add a text watermark to a photo
Upload your image, type your watermark text — a copyright line, your name, or your brand — pick a color, choose one of nine positions, and set opacity and size with the sliders. The preview updates live with every change so you can find the exact balance between visibility and subtlety before downloading. Most creators land between 30–60% opacity in a corner position.
Add a logo watermark with transparency
Switch to the Logo tab and upload your logo file. A PNG with a transparent background works best, because the transparency is preserved when the logo is composited onto your photo. The size slider scales the logo relative to the image width, so the same settings produce consistent results across photos of different resolutions — useful when marking a whole shoot one image at a time.
Where should a watermark go?
Bottom-right is the convention and least intrusive, but it's also the easiest to crop out. For stronger protection, use the center position at low opacity (15–25%) so the mark overlays the subject without ruining the photo. Diagonal-corner cropping attacks fail against centered marks. All compositing happens in your browser via the Canvas API — your originals and your logo never leave your device.
Text or Logo Watermark — Choosing the Right Mark for Your Photos
A text watermark — a name, a copyright line, a brand — is the fastest way to claim authorship on a batch of photos and needs no extra asset beyond typing it in. A logo watermark reads as more professional for a business or studio, and works best as a PNG with a transparent background so it composites cleanly onto any photo without a visible box around it. Both types share the same nine-position placement grid, opacity slider and live preview, so switching between them costs nothing but a tab click.
Watermark Placement That Actually Deters Cropping
Bottom-right corner placement is the convention because it's least intrusive, but corners are also the easiest place to crop out entirely — a diagonal crop removes a corner mark in one cut. A centered watermark at low opacity, roughly 15–25%, sits directly over the subject where cropping it out would destroy the photo itself, making it the stronger choice when protection matters more than a clean, unmarked look. Corner marks at 30–60% opacity remain the right call for casual sharing where visibility, not theft-resistance, is the goal.
Watermarking Runs Locally — Originals Never Leave Your Device
Both the photo being marked and any logo file you upload are composited together using the Canvas API inside your browser, with nothing sent to a server at any point. That matters for photographers and designers marking client work or unreleased shoots before final delivery, where an upload-based tool would mean handing unpublished images to a third party. A watermark itself is a visible deterrent and an authorship signal, not a legal protection — copyright exists in the work regardless of whether it's marked.
Frequently asked questions
What opacity should I use for a watermark?
30–60% for corner text marks, 15–25% for large centered marks. The live preview lets you fine-tune per photo — darker images need higher opacity to keep the mark legible.
Can I use a transparent PNG logo?
Yes — that's the recommended format. Transparent areas in the PNG stay transparent when composited onto your photo.
Are my photos or logo uploaded?
No. Watermarking runs entirely client-side in your browser. Neither the photo nor your logo is sent to any server.
Does the watermark protect my image legally?
A watermark deters casual reuse and asserts authorship visibly, but copyright exists in your work regardless. For commercial disputes, registered copyright and original files are the stronger evidence.
Why does the watermark size stay proportional?
Size is set as a percentage of the image width, not fixed pixels — so the same setting looks consistent on a 1000px web image and a 6000px camera original.
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Data verified: 2026-06-11 · All processing happens in your browser — no files are ever uploaded.