Watermark images
Put your name or copyright on a batch of photos before you publish them. A shadow option keeps the text readable whether it lands on sky or shadow.
How to watermark images
- Add your images. The same watermark is applied to all of them.
- Type the text — usually
© Your Nameor a website address. - Choose a position. Bottom right is conventional. Tiled covers the whole image and is much harder to crop out, at the cost of looking heavier.
- Size is a percentage of each image's width, so a mixed batch gets a proportionate watermark rather than a fixed one that is huge on small images.
Why this one is different
Almost every free file tool works the same way: you upload your file to a company's server, their machine does the work, and you download the result. That means a copy of your document sat on someone else's hard drive, governed by a privacy policy you did not read.
Filebench does the work in the browser tab you are already looking at. There is no upload step because there is no server to upload to. The practical consequences: no file size limit, no queue, no account, no watermark, and it keeps working if your connection drops after the page loads.
| Filebench | Typical online converter | |
|---|---|---|
| Your file leaves your device | Never | Every time |
| File size limit | None | Often 10–100 MB free |
| Sign-up required | No | Usually, past a few files |
| Watermark on output | No | Sometimes |
| Works offline after loading | Yes | No |
Questions
Why is the size a percentage rather than pixels?
Because a batch usually contains different sizes. A 40px watermark is barely visible on a 6000px photo and enormous on a 400px thumbnail. Scaling to the image width keeps it looking the same on every file.
My watermark disappears on light photos. What do I do?
Leave Add a shadow ticked — it puts a soft dark edge behind the text so white lettering reads on a bright sky. For consistently light images, a dark watermark colour works better than white.
Does a watermark actually stop people using my photos?
It makes casual reuse less attractive and keeps your name attached when an image is shared. It does not prevent anything — a tiled watermark is harder to remove than a corner one, but nothing here is a substitute for licensing terms.
Can I use my logo image instead of text?
Not yet. That needs a second file input and its own positioning controls, which is a bigger change. Text watermarking covers the common case of a name or copyright line.
Does it change the original file?
No. Your originals are untouched — output files get -watermarked added to the name, so nothing is overwritten.
Other tools
Convert images
Swap between PNG, JPG and WEBP in bulk. Choose a background colour when converting transparent images to JPG.
Compress images
Cut image weight with a quality slider and an optional size cap. Each result shows the percentage saved.
Resize images
Resize by width, height, exact dimensions or percentage — in bulk, with the aspect ratio kept.