How to Add a Watermark to a PDF

Why add a watermark

Watermarks serve two distinct purposes, and knowing which one you need shapes how you set it up:

• ·Branding — a logo or company name on every page of a proposal, report, or client-facing document
• ·Document control — a status label like "DRAFT," "CONFIDENTIAL," or "NOT FOR DISTRIBUTION" that signals how a copy should be treated

Because the watermark is embedded in the page content itself, it stays visible to every reader regardless of which PDF viewer they use.

Step-by-step: add a watermark

1. 1Open editpdfai.com/pdf-watermark and upload your PDF.
2. 2Choose a text watermark and type your text, or upload an image such as a logo.
3. 3Adjust opacity so the watermark is visible without obscuring the underlying content — lower opacity works better over dense text pages.
4. 4Set the rotation angle and position; a diagonal watermark across the page center is the most common choice for document-control use.
5. 5Preview the result on a sample page, then click Apply and download the watermarked PDF.

Text vs. image watermarks

• ·Text watermarks are faster to set up and work well for status labels — no image file needed
• ·Image watermarks are the right choice for logos or brand marks, and support transparency so they blend into the page
• ·For confidentiality marking, a repeated diagonal text watermark is harder to crop out of a screenshot than a single small logo in a corner

Practical tips

• ·A watermark is visible, not hidden — it does not restrict who can open, copy, or edit the file. Pair it with PDF Password Lock if you also need access control
• ·Test opacity on the densest page of your document, not just the cover page, so text underneath stays legible
• ·For a permanent audit-trail mark rather than a visual label, consider whether metadata or a digital signature better fits the need

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