Add a Watermark to an Image
Protect a photo or brand it with your name. Stamp text onto any image with the position, color, and opacity you choose — free, and we never add a watermark of our own.
How to watermark an image
- Upload your image (JPG, PNG, WebP, or HEIC).
- Choose Add Watermark, type your text, and set position, color, and opacity.
- Download the watermarked image. Your upload is deleted from our server automatically.
Why use File Forge?
- Full styling control: place it in any corner, center, or diagonally, in the color and opacity you want.
- No forced branding: the only watermark on your image is the one you add.
- Free & verifiably private: deleted after download, open source, no signup.
How File Forge keeps your Watermark Image files private
When you use the Watermark Image tool, your file is uploaded over an encrypted HTTPS connection and processed on the server, then handed straight back to you. File Forge is built privacy-first, and — because the entire codebase is open source — every claim on this page is something you can verify line by line or run yourself, rather than a marketing promise you have to take on trust.
Your file is deleted the moment you are done
The file you upload is removed from our server as soon as the Watermark Image operation finishes, and the processed result is deleted the instant you download it. As a safety net, a background sweeper runs continuously and purges anything older than one hour, so nothing of yours lingers on disk. We never build a library of your documents, never resell them, and never train anything on them. There is no hidden retention and no analytics tied to your file contents.
Open source you can audit — or self-host
Most “free” online file tools ask you to trust a closed black box. File Forge is different: the complete source code is public on GitHub, so a developer can read exactly how the Watermark Image tool handles uploads, confirm the deletion logic, and even run a private copy on their own machine or server. Verifiable privacy beats a privacy policy you simply have to believe.
No account, no watermark, no upsell
There is no signup, no email wall, and no credit card. File Forge never stamps a watermark on your output and never caps you at “one free file” before demanding payment. The Watermark Image tool is genuinely free to use as often as you need, on any device with a web browser — no software to install and no extensions to add.
Frequently asked questions
Can I choose where the watermark goes?
Yes — corners, center, or a diagonal stamp across the image, with adjustable color and opacity.
Will File Forge add its own watermark?
Never. Your output carries only the text you choose — nothing else.
Can I watermark a PDF?
Yes — use the free Watermark PDF tool for documents.
More free tools
Watermark PDF · Compress Image · Resize Image · Convert Image · Crop Image