A watermark shows who owns a picture or marks a document as confidential. It will not stop a determined thief, but it makes copying far less attractive and keeps your name attached to your work.
When to use one
- Photographers and designers sharing previews.
- Sellers posting product photos.
- Businesses marking drafts as CONFIDENTIAL or DRAFT.
- Anyone sharing ID copies who wants to limit misuse, for example “For bank account opening only”.
Watermarking a photo
- Open watermark image and add one or many pictures.
- Type your text, such as your name or website.
- Choose one mark in a corner, or repeat it across the picture.
- Adjust size, opacity and angle, then press Add watermark and download.
Watermarking a PDF
Use watermark PDF. Type the text, choose the colour, opacity and angle, and it is stamped on every page.
Settings that work well
- Opacity 30% to 50%. Visible enough to read, but not distracting.
- Diagonal, repeated marks are hardest to crop out.
- A single corner mark looks cleaner for portfolio shots.
- Dark outline or box behind the text keeps it readable on both light and dark areas.
Sharing ID documents safely
If you must send a copy of an ID, write who it is for and why across the whole picture. Pair it with remove EXIF data so location details are not leaked, and cover numbers you do not need with the blur tool.
Limits to know
A watermark can be cropped or edited out by a skilled person. For critical material, share lower-resolution previews and keep the full-quality files private.
Privacy
Your files are processed in your browser. Nothing is uploaded, so unreleased work and private documents stay private.