Add Watermark to Images Free
Add text or image watermarks to photos online for free. Customise watermark text, font size, colour, opacity, and position. Protect copyright on PNG, JPG, and WebP images. Batch watermark up to 20 images at once. No signup, no watermark added to your output by Multi Converters.
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PNG · JPG · WebP · up to 20 images
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Watermark Text
No account required · Files deleted in 24h
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Pro — 200 images/batch, image logo watermark, diagonal repeat, API
API access · Priority queue · Team workspace
How It Works
Upload Images
Upload up to 20 PNG, JPG, or WebP images at once. All images in the batch will receive the same watermark settings. For consistent results across product photos, portfolio images, or stock photos, batch watermarking ensures identical placement and appearance without processing each image individually.
Configure Watermark
Set your watermark text (copyright, brand name, URL, or any custom text), choose position (corner or centre), set font size as a percentage of the image dimensions (scales proportionally regardless of image size), select colour (white for dark images, black for light images), and adjust opacity from subtle (10%) to prominent (100%).
Download Results
Single images download directly as JPG or PNG. Multiple images are packaged in a ZIP archive. The watermarked images maintain the same resolution and format as the source. Multi Converters does not add any branding, logo, or secondary watermark to your output — your watermark text is the only addition.
Add Watermark Features
Text Watermark
Add any text as a watermark — your name, brand, copyright notice (© 2025 Brand), website URL, or any custom message. Font size scales relative to image dimensions (not in fixed pixels), so a "medium" watermark appears proportional whether applied to a 400px thumbnail or a 4000px high-resolution image. White text with a subtle shadow is recommended for maximum legibility across light and dark photos.
Flexible Positioning
Place the watermark in any corner (top-left, top-right, bottom-left, bottom-right), centred, or tiled (repeated across the entire image). Bottom-right is the professional standard for photography watermarks — it's visible but doesn't obstruct the main subject. Tiling (repeat) is used when you need full-image protection against easy cropping of corner watermarks.
Opacity Control
Adjust watermark opacity from 10% (nearly invisible — subtle protection) to 100% (fully opaque — maximum protection but obstructs the image). Photography professionals typically use 30–50% opacity for a balance of visibility and non-intrusiveness. For preview/proof images sent to clients before purchase, 70–90% opacity prevents use while remaining readable.
Batch — 20 Images
Apply the same watermark to up to 20 images in one batch. Essential for photographers watermarking a photo shoot, ecommerce sellers protecting product catalogue images, or content creators branding their stock photo library. All images are processed with the same settings and downloaded as a ZIP. Pro plan scales to 200 images per batch with API access for automation.
No Tool Watermark on Output
Many free watermark tools add their own branding to your output — we don't. Multi Converters adds only the watermark text you specify. Your copyright or brand text is the only modification made to your images. This applies to both the free and Pro tiers. We earn revenue through Pro subscriptions, not by monetising your image output.
Private & No Account Needed
All uploads use TLS 1.3 encryption. Images are processed in isolated containers and permanently deleted within 24 hours. No signup or account required for the free tier — upload, watermark, and download without registration.
Free vs Pro
| Feature | Free | Pro |
|---|---|---|
| Images per batch | 20 | 200 |
| Image/logo watermark | — | |
| Diagonal/rotated text | — | |
| Custom font upload | — | |
| API access | — | |
| Tool watermark on output | None | None |
Frequently Asked Questions
Watermarks are a deterrent, not absolute protection. A visible watermark makes commercial use of your image without permission less desirable (the watermark would appear in any reproduction) and signals your copyright ownership clearly. However, watermarks can be cropped out if positioned in a corner, or removed with AI inpainting tools if the opacity is low. For maximum protection: use tiled watermarks that can't be easily cropped, or use semi-transparent watermarks across the centre of the image. Register your copyright for legal protection beyond the deterrent effect.
For images you're sharing publicly (social media, portfolio): 30–50% is the professional standard — visible enough to be seen, subtle enough not to distract from the image. For preview/proof images sent to clients before payment: 60–80% makes the watermark harder to overlook. For full watermark protection (stock preview pages): 90–100% opacity with tiled placement ensures the image can't be used without the watermark visible in every reproduction.
Image/logo watermarks are available in the Pro tier. Upload a PNG with a transparent background (your logo or signature) and it will be composited over your photos at your chosen position, size, and opacity. Logo watermarks are more distinctive and harder to remove than plain text — they identify your brand immediately and are useful for consistent branding across a large photo library.
For photographs: JPEG at quality 90+ preserves photographic quality while keeping file sizes manageable. For graphics with text or logos where the watermark needs sharp edges: PNG is better as it avoids JPEG compression artefacts around high-contrast text. For social media sharing where file size matters: WebP at quality 85 gives excellent quality at smaller file sizes than JPEG.
No. Multi Converters adds only the watermark text or logo you specify — no Multi Converters branding, URL, or logo is added to your output images. We earn revenue through Pro subscriptions, not by monetising your images. This applies to both free and Pro tiers.
Yes. TLS 1.3 encrypted. Files deleted within 24 hours. No account required.