Photographer's credit
- Input
- © Jane Doe, bottom right, 40% opacity
- Output
- A discreet credit that does not distract
Low opacity in a corner marks ownership without spoiling the photograph.
Image Watermark
A watermark is text or a mark placed over an image to identify its owner or mark it as a draft. This tool overlays text you choose, with control over position, size, colour, opacity and rotation, then writes it permanently into the downloaded file.
Runs entirely in your browser — your images are never uploaded.
How to
How to use the Image Watermark
- 1
Add your images
Drop in one or many — the same watermark is applied to all of them.
- 2
Type the watermark
Your name, a website, or something like DRAFT or CONFIDENTIAL.
- 3
Position and style it
Choose a corner or the centre, then set size, colour, opacity and rotation. The preview updates live.
- 4
Download
Save individually or take the whole batch as a ZIP.
Examples
Image Watermark examples
Draft marking
- Input
- DRAFT, centred, 25% opacity, rotated 30°
- Output
- A large diagonal overlay across the image
A big rotated watermark across the middle is hard to crop out, which is the point when marking proofs.
Batch branding
- Input
- 20 product photos, same watermark
- Output
- 20 watermarked images in one ZIP
The same settings apply to every image, scaled relative to each one so it looks consistent across different sizes.
Why use it
What the Image Watermark gives you
Scales with the image
Watermark size is relative to the image, so it looks the same on a small thumbnail and a large photo in the same batch.
Live preview
Position, opacity and rotation update immediately, so you are not downloading repeatedly to check.
Written into the pixels
The watermark becomes part of the image rather than metadata, so it survives being copied or re-saved.
Batch application
Apply one watermark across a whole folder and download the results together.
Private
Images are watermarked in your browser and never uploaded.
Good to know
Image Watermark limitations
- Text watermarks only — image and logo watermarks are not supported.
- A watermark deters casual copying but can be removed by someone determined, especially a small corner mark.
- The watermark is permanent in the download. Keep your originals.
- Images are limited to 25 MB each.
Summary
Image Watermark in short
- A watermark marks ownership or status by overlaying text into the image itself.
- Corner marks at low opacity are discreet; large rotated centre marks are harder to remove.
- Watermark size scales relative to each image, so batches stay consistent.
- Everything runs in your browser.
FAQ
Image Watermark questions
What is a watermark?
Text or a mark placed over an image to identify its owner or its status. It is written into the pixels, so it stays visible wherever the image is copied.
Where should I put it?
A bottom corner at low opacity is standard for photo credits — visible but unobtrusive. For proofs or drafts, a large rotated mark across the centre is far harder to crop away.
What opacity works best?
30–50% for a discreet credit, which reads without competing with the picture. 15–25% for a large centre watermark, since it covers much more area and would otherwise dominate.
Can a watermark be removed?
A determined person can crop out a corner mark or clone it away, and AI tools make that easier. Watermarks deter casual reuse rather than making theft impossible — a large centre mark is much harder to erase than a small corner one.
Can I use my logo instead of text?
Not in this version — text only. For a logo watermark, place the image manually in an editor, or export your logo as text-like initials.
Can I watermark many images at once?
Yes. Add as many as you like and the same settings apply to all of them, scaled relative to each image so the result looks consistent.
Does watermarking reduce quality?
The re-encode costs a small amount if the output is lossy, the same as any edit. Save as PNG if you need the rest of the image untouched.
Can I remove the watermark later?
Not from the downloaded file — it is part of the pixels. Your original is untouched, so keep it and re-watermark if you want different settings.
Are my images uploaded?
No. Each image is drawn to a canvas in your browser with the text painted over it. Unwatermarked originals are exactly what you want to keep private, and they never leave your computer.
Discover
Related image tools
Image CropperCrop images to any aspect ratio with a drag handle and live preview. Presets for square, 16:9 and social sizes. Runs in your browser.Image ResizerResize images by pixels or percentage, with the aspect ratio locked. Batch resize and download as a ZIP. Runs in your browser.Image CompressorCompress JPG, PNG and WebP images in your browser. Set a quality level or a target size and see exactly how much you saved.Image Metadata RemoverStrip EXIF and location data from photos before sharing them. See exactly what your image reveals, then remove it in your browser.