Question 1

Can I add a text watermark like "DRAFT" or "CONFIDENTIAL"?

Accepted Answer

Yes — type any text, choose a font size and color, and it will be stamped across the pages you select. Rotate it 45° for a classic diagonal watermark.

Question 2

Can I use my own logo as a watermark instead of text?

Accepted Answer

Yes — switch to image mode and upload a PNG or JPG logo. You can control its size (as a percentage of the page width), opacity, rotation, and position.

Question 3

Can I watermark only some pages, not the whole document?

Accepted Answer

Yes — choose "All pages", "Odd pages", "Even pages", or enter a custom range like "1-3,5" to watermark specific pages only.

Question 4

Will the watermark cover up my document’s content?

Accepted Answer

Lower the opacity slider to make it more transparent. A light, semi-transparent watermark (around 30-50% opacity) is usually enough to mark a document without obscuring the text underneath.

Question 5

Is my PDF uploaded to a server?

Accepted Answer

No. Everything happens entirely in your browser using the pdf-lib library — your document and any logo image never leave your device.

Question 6

Does this work on scanned PDFs?

Accepted Answer

Yes — the watermark is drawn on top of the page as a new layer, so it works regardless of whether the underlying page is a scanned image or native text.

PDF Watermark Adder

Choose PDF & Watermark

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Frequently Asked Questions

Can I add a text watermark like "DRAFT" or "CONFIDENTIAL"?

Can I use my own logo as a watermark instead of text?

Can I watermark only some pages, not the whole document?

Will the watermark cover up my document’s content?

Is my PDF uploaded to a server?

Does this work on scanned PDFs?

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