Watermark Image
Add text or image watermarks to supported photos online. Process the available batch, preview results, and download them.
Add a Watermark to a Photo in Your Browser
Use this tool to stamp a text or image watermark onto a single photo. The process runs locally in your browser: you drop in a file, configure the mark's position and opacity, review the result, and download the watermarked version. Your original file remains untouched on your device.
Supported Formats and Limits
You can upload JPG, PNG, WEBP, GIF, BMP, and SVG files. The operation is limited to a single image at a time; if you need to process a folder of files, you must repeat the workflow for each one. Because the canvas and codecs are handled by your browser, the practical limit is your device's available memory rather than a server-side quota.
How the Marking Process Works
The tool acts as a local overlay engine. You are not uploading the image to a remote server for rendering; instead, the browser draws the watermark onto a copy of the file.
- Upload: Select a file from your device or drag it into the uploader. The accepted types are JPG, PNG, WEBP, GIF, BMP, and SVG.
- Configure: Adjust the watermark text or image, its opacity, and its position on the canvas. The preview updates as you change these settings.
- Review: Check the placement against the busiest part of the photo. Ensure the text or logo is readable when the image is scaled down to thumbnail size, not just in the full-screen preview.
- Download: Click "Apply and download" to save the new file. The original image is not modified or overwritten.
Positioning Strategy: A watermark placed too close to the edge is the first element lost during cropping or scaling. Position the mark over content that cannot be removed without damaging the visual integrity of the image.
Privacy and File Safety
Your file does not leave your computer. The entire operation—decoding the image, drawing the watermark, and encoding the output—happens inside the browser tab using the HTML5 canvas API and native codecs. There is no queue, no account creation, and no server-side copy of your image. If you close the tab without downloading, the processed image is discarded from local memory, and your original file remains exactly as you left it.
Best Input Conditions
For the best results, start with a high-resolution source file. Watermarking a low-quality or already-compressed image will not improve the file, and the watermark may become pixelated if the source is tiny. Use semi-transparent text or logos so the underlying photo remains visible. If the tool rejects a file, verify that it is not corrupted and that it matches one of the accepted extensions (JPG, PNG, WEBP, GIF, BMP, SVG).
Watermark Image FAQ
What does Watermark Image do?
Add text or image watermarks to supported photos. Configure the mark, review each result, and download the processed images.
Which files work with Watermark Image?
This category commonly supports JPG, PNG, WEBP, GIF, BMP, and SVG. Use the accepted file types shown in the uploader, because support varies by browser and by the engine behind each tool.
Can I remove a watermark from a file?
Only if you own the source or have permission to edit it. Removal tools patch the pixels around the mark and cannot restore what was covered, so keep the unwatermarked original.
Will my original file be changed?
No. The work is done on a copy in this tab by the canvas and the codecs built into your browser, and the result arrives as a separate download, so your original is still there if you need it.
How is my file processed?
It is not uploaded. The processing is done locally by the canvas and the codecs built into your browser, so the practical ceiling is your device's memory and the limit shown beside the uploader - no queue, no account, no copy on a server.
Can I remove a watermark from a photo using this tool?
No. This tool is designed to add marks, not to erase them. Removing a watermark requires in-painting or pixel patching to reconstruct the covered area, which cannot restore the original details under the stamp. Always keep the unwatermarked original file so you can start over if the placement is wrong.