Add Watermark to Image
Protect your photos with a custom text watermark. Choose position, opacity, and tiling.
Complete the security check to begin
How to Use Add Watermark to Image - Free & Private
Add a text watermark to your images online for free. Choose position, opacity, and tiling. Privacy-first - processed in memory, deleted instantly.
Drag and drop your file into the upload area or click to browse your device. Files up to 250 MB are accepted and sent over an encrypted HTTPS connection.
Your file is processed in an isolated, in-memory environment on our servers. It is never written to disk and never mixed with other users' files.
Your result is ready in seconds. Download it, and your file is purged from memory immediately - we keep no copy, backup, or cache.
Why Choose PrivConvert?
Unlike other online tools that upload your files to remote servers, store them for days, and may use them for AI training or data mining, PrivConvert was built with privacy as the foundation.
Files are processed in volatile memory (RAM) and immediately purged. Nothing is ever written to disk or backed up.
All uploads and downloads are encrypted with TLS 1.3. Your files cannot be intercepted in transit.
Use any tool instantly without signing up, providing an email, or creating a profile. No tracking cookies, no user profiling.
Compatible with Windows, macOS, Linux, iOS, and Android. No plugins or desktop software needed - just a modern web browser.
Trusted by Thousands of Users
PrivConvert processes thousands of file conversions every day. Our commitment to privacy and security has made us the go-to choice for professionals, developers, and privacy-conscious users worldwide.
Frequently Asked Questions
Is Add Watermark to Image - Free & Private free to use?
Yes, completely free with no limits, no sign-up, and no hidden fees. Use it as many times as you want.
Is my data safe?
Your file is processed in an isolated, in-memory environment on our servers, sent over an encrypted HTTPS connection, and permanently deleted the moment your download is ready. It is never written to disk, stored, or shared.
Does it work on mobile devices?
Yes. The tool works on any device with a modern web browser - smartphones, tablets, laptops, and desktops.
Do I need to create an account?
No. You can use the tool instantly without signing up, providing an email, or creating any profile.
What a watermark does and does not protect
A visible watermark deters casual reuse. Someone who would have dragged your image into a deck will think twice when your name is across it, and if the image does travel, the mark travels with it and functions as attribution.
It is not copy protection. Anyone determined can crop it, clone it out, or run an inpainting model over it in seconds. The realistic goal is to raise the effort above what a casual taker will spend, and to make provenance visible when the image is shared.
Placement is the whole decision
A mark in a corner is easily cropped, but a mark across the centre ruins the image for the people you want looking at it. The usual compromise is semi-transparent, positioned over the subject rather than over background, and large enough that removing it damages something you would notice. For contact sheets and proofs, tiled across the whole frame is standard, because those images are meant to be unusable until purchased.
Keep an unwatermarked original
Watermarking here produces a new image; it does not alter the file you uploaded. But once you have distributed the watermarked version, that is the version in circulation — so archive the clean master before you publish. There is no way to recover the pixels underneath a mark that has been flattened into the image.
Unlike most tools in this section, watermarking runs on our servers, because it composites the image. It is processed in an isolated, in-memory environment, never written to disk, and discarded as soon as your download is ready.