Free Online Image Watermark Tool - Add Text & Logo Watermarks

A Our free online Image Watermark tool makes it easy for small businesses to brand product photos. Upload your image, then select 'image watermark' and upload your logo. You can then adjust its size, position, opacity, and rotation directly on your product photo to ensure it complements your branding without obscuring details. This helps protect your intellectual property and promote your brand across e-commerce platforms and social media.

A You can upload common image formats like JPEG (.jpg) and PNG (.png) for watermarking. This covers most of the photos you'll be working with. If you're converting a screenshot from PNG to JPG, that works too. Just ensure the file is a standard web image.

A No hard limit exists. You can scale text up to fill the entire image if you want. The font size slider goes from 10px to 300px, but you can also type in a custom value. Just keep in mind that oversized text might look unprofessional. For product photos, I'd recommend keeping it between 40px and 80px for a clean brand mark.

A No, the original image stays untouched. The watermark is rendered on top during export, but the source file isn't altered. You can download at the same JPEG quality setting (default 90%) or switch to PNG for lossless output. For social media, JPEG at 80% quality keeps file size under 500KB while looking sharp. One tip: always keep a clean backup before watermarking.

A You need an internet connection to load the website initially, since it's a web app. But once the page is fully loaded, the browser can handle everything locally. If you disconnect your WiFi, the tool still works perfectly — all processing happens right in your browser's memory, not on a remote server. Great for coffee shops with spotty connections or when you're editing sensitive client files.

A Usually under 30 seconds, including upload and download. The actual processing is instant, since everything happens in your browser locally. Your computer's speed and image file size affect the export time. A 10MB JPEG exports in about 3 seconds on a modern laptop. For small business owners preparing marketing materials, that means you can watermark a dozen product photos in under 5 minutes. Tip: keep your browser updated for best performance.

A None whatsoever. Your images never leave your device. Every pixel stays inside your browser's memory, so there's no upload, no temporary file on a server, and no data leak. That's the entire point of local processing. Teachers handling student work or designers watermarking confidential drafts can use this tool without worrying about privacy. For extra peace of mind, close the browser tab after downloading your finished file.

A Most pixelation happens when your logo file is too small. For crisp results, upload a logo at least 300x300 pixels at 72 DPI. The tool doesn't upscale tiny images well, because they're handled locally in your browser. A PNG with transparency works best for logos. If your logo is under 100 pixels wide, scale it up in an editor first before uploading here.

A EXIF data like camera settings, GPS coordinates, and timestamps stays intact during watermarking. The tool processes your image locally without stripping metadata. For client work, I'd still check the output file. Some social platforms strip EXIF anyway during upload. If you're sharing sensitive location data, use a tool to remove EXIF first. One less thing to worry about when watermarking product shots for your shop.

A No, and anyone promising that is overselling. A watermark deters casual theft and gives credit, but a determined person can crop it out or clone-stamp over it. Use a diagonal repeating pattern across the middle for better protection; corner placement is the easiest to remove. For client galleries or portfolios, keep your watermark subtle but consistent. Pair it with low-resolution exports (like 1600px wide) and you've got practical protection without ruining the viewing experience.