Add a Watermark

Why watermark files for free instead of a paid tool

Adding a repeated text overlay to a photo or a PDF is a drawing operation — one your own browser can already do. Some watermarking services charge per image or per month for bulk use; this tool does the same job for free, on one file at a time, with nothing uploaded.

When to watermark

• Portfolio or proof images — deter unauthorized use of photos shared for client review before final delivery.
• Draft documents — mark a PDF as "DRAFT" or "CONFIDENTIAL" before circulating it.
• Shared previews — watermark a preview copy while keeping the clean original for the final version.

Choosing opacity and position

Lower opacity (20-40%) keeps the underlying content fully readable while still marking it — good for documents. Higher opacity works better for a bold, hard-to-remove mark on images. A single centered watermark is quick; tiled/repeated watermarks are harder to crop out.

Frequently asked questions

Is my file uploaded to a server? No — the watermark is applied entirely inside your browser. Your file never leaves your device.

Can I control how visible the watermark is? Yes — adjust the opacity slider from faint to fully solid, along with font size and rotation angle.

Does the PDF watermark apply to every page? Yes — the watermark text is applied to every page of the PDF in one pass.

Is there a limit on file size? There's no artificial daily limit — practical limits depend on your device's available memory for very large files.

How to add a watermark to an image or PDF

1. Pick the tab for what you are marking: Watermark an Image or Watermark a PDF.
2. Choose your file, then type the watermark text, such as your name, a website or the word CONFIDENTIAL.
3. Adjust colour, opacity, font size, rotation and position (centred or repeated across the page).
4. Apply the watermark and download the new file. Your original is not changed.

Choosing settings that work

Setting	Suggestion
Opacity	Around 20–40% keeps the content readable while still visible.
Rotation	A diagonal angle such as 30–45° is hard to crop out and looks professional.
Position	Centre suits a single bold mark; Repeat (tiled) makes removal difficult.
Colour	Mid-grey works on most backgrounds; use white on dark images.

When a watermark is the right tool

• Protecting photos or artwork you share online with your name or brand.
• Marking drafts as DRAFT or documents as CONFIDENTIAL before sending them.
• Labelling a contract copy so it cannot be mistaken for the signed original.
• Adding a website address to graphics you distribute.

Things to keep in mind

A visible watermark discourages casual reuse but cannot stop a determined person, so keep your unmarked originals safe and share only the watermarked versions. For PDFs, the mark is added to every page, which makes it a good fit for confidential files you want to circulate. If you need to combine files first, use Merge PDF, then watermark the finished document.

More questions

Can I watermark with my logo? This tool adds text watermarks. For a logo, add it in an image editor or include your brand name as the watermark text.

Will the watermark reduce my image quality? The mark is drawn on top of the image, and the rest of the picture is kept as it is. Very strong compression settings in other tools are not part of this process.

Can someone remove the watermark? Tiled, semi-transparent marks are hard to remove cleanly, but no watermark is impossible to remove. Treat it as a deterrent, not as security.