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Add Watermark
Add Watermark stamps text over your pictures with control of position, size, colour and opacity. It is designed for copyright lines, client previews and draft labels that must travel with the image.
How to use Add Watermark
- Upload the image you want to mark.
- Type the watermark text and adjust its size, colour, opacity and position.
- Apply the watermark and download the stamped picture.
Where Add Watermark is useful
- Marking client previews so they cannot be used without payment.
- Adding a copyright line to photos before sharing them online.
- Labelling draft graphics with a status or date.
Formats, algorithms and limits
Text is drawn onto the image's own canvas coordinates, so the watermark scales with the picture and becomes part of the pixels. Because it is baked in rather than layered, it cannot be switched off in a viewer, though it also cannot be repositioned later.
Troubleshooting and honest limits
- Use 25-40% opacity for a legible but non-intrusive stamp.
- Keep watermarks away from the main subject; a corner placement survives most crops.
- Remember that the stamped file is a new image — keep an unwatermarked master for later use.
Frequently asked questions
Can the watermark be removed later?
Not from the exported file — it is part of the pixels. Keep your original master image so you can produce other versions later.
Can I place the watermark diagonally?
You can position it anywhere on the picture, including the centre where it is hardest to crop out, and control the font size to scale it across the frame.
Does watermarking reduce image quality?
The image is re-encoded once, so there is one generation of compression. Drawing text itself does not soften the photo.
Can I watermark several images with the same text?
Yes. Queue multiple files and each one receives the same watermark settings.
Related tools
Page written and reviewed by the FreeConvertio engineering team on 2026-10-14. Add Watermark runs entirely in your browser — no uploads, no account and no daily limits.