A PDF watermark tool built for real documents
A PDF watermark is text or an image drawn over (or behind) the content of each page to show a document’s status, ownership or audience. BigWatermark writes the watermark directly into each page’s content, so it appears in every PDF viewer — Adobe Acrobat, Chrome, Edge, Apple Preview and mobile apps — and is printed along with the page.
Existing text, vector graphics, scanned images, form fields and annotations are preserved. Nothing is flattened or rasterized, so text in the original PDF stays selectable and searchable and the file size grows only slightly.
What you can control
| Setting | Options |
|---|---|
| Watermark type | Text, or an image/logo (PNG, JPG, WebP, SVG) |
| Typography | Helvetica, Times or Courier; regular, bold, italic; size 12–180 pt; letter spacing |
| Appearance | Any color, opacity from 2% to 100%, rotation from −180° to 180° |
| Placement | Nine preset positions with adjustable margin, or exact X/Y coordinates |
| Pattern | Single stamp or a repeated grid / staggered tile across the page |
| Pages | All, current, first, last, odd, even or a custom range such as 1-4, 9 |
Popular PDF watermark ideas
- CONFIDENTIAL or INTERNAL USE ONLY on reports, board packs and HR documents.
- DRAFT on contracts and proposals that are still under review.
- SAMPLE or PREVIEW tiled across e-books, course notes and paid templates.
- COPY or NOT ORIGINAL on duplicates of certificates and records.
- Your company logo in a corner of brochures, price lists and pitch decks.
- Prepared for [client name] to make every shared copy traceable.
Want a deeper walkthrough? Read how to watermark multiple PDFs at once or our guide to protecting confidential PDFs before sharing.