Photo Watermark Adder
100% Private • Photo Never Leaves Your DeviceQuick Answer: Choose a photo above, type your watermark text (or upload your logo), adjust the size, opacity, and position, and press Download. Everything happens directly in your browser – your photo is never uploaded to any server, so it works offline, there are no file-size limits, and your images stay completely private.
Why Add a Watermark to Your Photos?
A watermark is a semi-transparent text or logo placed over an image to identify its owner. Once your photo is posted online, it can be re-shared, screenshotted, and reposted within minutes – and reverse-image search only helps you find copies after the fact. A visible watermark travels with the image wherever it goes.
- Photographers – protect portfolio shots and client previews from unpaid use.
- Small businesses – brand product photos so reposts still advertise you.
- Content creators – keep credit on infographics, memes, and tutorials as they spread.
- Artists and designers – watermark previews while keeping the clean original for buyers.
- Realtors and sellers – stop listing photos being reused on scam listings.
How to Add a Watermark to a Photo (Step by Step)
- Choose your photo – click the blue button and pick any JPG, PNG, or WebP image. It loads instantly because nothing is uploaded.
- Type your watermark text – your name, brand, website, or social handle. Or upload a logo image (a transparent PNG works best).
- Adjust size and opacity – 40-60% opacity is the sweet spot: clearly visible but not ruining the photo.
- Pick a position – bottom-right corner is the classic choice; choose Tiled to repeat the watermark diagonally across the whole image for maximum protection.
- Download – PNG for best quality, JPG for smaller file size.
Text Watermark vs Logo Watermark vs Tiled
| Style | Best For | Protection Level |
|---|---|---|
| Text (corner) | Social media posts, blogs, quick credit | Basic – easy to crop out |
| Logo (corner) | Brand recognition, product photos | Basic – easy to crop out |
| Center | Preview images, client proofs | Strong – hard to remove cleanly |
| Tiled (all over) | Stock previews, paid content samples | Strongest – covers the whole image |
Watermarking Best Practices
- Keep opacity between 40% and 60% – fully opaque watermarks distract from the photo; below 30% they are trivial to clone out.
- Place it over detail, not flat areas – a watermark on plain sky or a white wall is much easier to erase than one over texture.
- Include something findable – a website or handle (yourname.com) is more useful than just a name, because viewers can trace the image back to you.
- Keep an unwatermarked original – always export a watermarked copy and archive the clean original separately.
- Use PNG for logos – a logo with a transparent background blends naturally instead of sitting in a white box.
Why This Tool is Different: No Upload, 100% Private
Most online watermark tools upload your photo to their server, process it there, and send it back. That means your private photos sit on someone else’s computer, large files take ages to transfer, and there are usually file-size limits or daily quotas. This tool uses your browser’s built-in canvas technology instead: the photo is read directly on your device, watermarked on your device, and downloaded from your device. Nothing is transmitted anywhere – you can even switch off your internet after the page loads and it still works.
Frequently Asked Questions
Is this photo watermark tool really free?
Yes – completely free, with no sign-up, no daily limits, and no watermark-on-your-watermark tricks. Use it on as many photos as you like.
Are my photos uploaded to a server?
No. The watermarking happens entirely in your browser using canvas technology. Your photo never leaves your device, which also means there is no file-size limit and no privacy risk.
Can I use my own logo as a watermark?
Yes. Use the optional logo upload and your logo replaces the text watermark. A PNG with a transparent background gives the cleanest result, and the size slider controls the logo size too.
What is the best opacity for a watermark?
40-60% opacity works best for most photos: visible enough to deter theft, subtle enough not to ruin the image. Use higher opacity (or the tiled mode) for paid-content previews where protection matters more than looks.
Does watermarking reduce photo quality?
Downloading as PNG keeps the original quality pixel-for-pixel. JPG applies light compression (92% quality) for a smaller file – fine for social media, but choose PNG for printing or archiving.
Which image formats are supported?
Any format your browser can open: JPG, PNG, WebP, GIF (first frame), BMP, and AVIF in modern browsers. Output is PNG or JPG.