VoraPDF
Privacy

Add watermark

Add a text watermark with adjustable size, opacity and position on every page.

Runs in your browser Free

The conversion runs in your browser. Nothing is uploaded.

What this tool does

Watermark stamps your text diagonally across every page, or tiles it, with the size and opacity you set. It is the standard way to mark a draft, a confidential copy or a document sent for review.

The watermark is drawn into the page content rather than added as an annotation, so it survives printing and conversion, and it is applied locally in your browser — the document never leaves your device.

How to convert it

  1. Add the PDF.
  2. Type the watermark text and adjust size, opacity and position.
  3. Apply and download the stamped PDF.

When to use it

  • Marking a document as a draft or confidential.
  • Adding a company name to a proposal sent to a client.
  • Tracing which copy of a document was shared.

What it cannot do

  • Text watermarks only; no image or logo watermark.
  • The stamp is part of the page content and is not a security feature.

Questions about this conversion

Is this PDF tool really free?

Yes. There is no account, no watermark and no daily limit on the number of files. The tools run on your own device, so there is no per-file cost to pass on to you.

Are my files uploaded to a server?

Not for this tool: the conversion happens in your browser and the file is never sent anywhere. Where a job genuinely needs a server, the page says so before you start and deletes the copy with the job.

Does it work on a phone?

Yes. Pages are keyboard reachable and the drop area accepts the phone file picker. Large documents are limited by the memory of the device rather than by the site.

Can I use the output commercially?

Yes. We claim no rights over your documents or the files produced from them, and we add nothing to the output.

Can the watermark be removed?

It is drawn into the page content, so removing it means editing the PDF itself. Treat it as a clear marking, not as copy protection.

Which opacity should I use?

Around 15 to 25 percent keeps the text readable underneath. Above 40 percent the watermark starts to compete with the content.