PDF Watermark Free Online: Add Text Watermark to PDF
Add vector text watermarks to PDF pages: diagonal, grid, or positioned placement with opacity and rotation.
Stamp scanned contracts, reports, or draft documents with a custom text watermark. Choose diagonal, grid, or anchored placement, control opacity and rotation, and export a vector-quality PDF that stays crisp at any zoom level.
How to Use It
- Upload your PDF and wait for the local preview to load.
- Adjust the settings: Adjust the available settings and run the tool locally in your browser.
- Download the result: Download the processed file directly to your device.
Frequently Asked Questions
Is the watermark vector or raster?
Vector. Text is embedded with a standard PDF font, stays crisp at any zoom, and remains searchable and copy-able.
Can I watermark a specific page range?
Yes. Enter page numbers or ranges (e.g. 2, 5-7) in the pages field, or leave it blank to watermark every page.
Does diagonal placement center automatically?
Yes. Diagonal mode locks rotation to -45° and centers the watermark on each page regardless of page size.
Is my PDF uploaded?
No. The file is opened, watermarked, and exported entirely in your browser. Supported file contents are not uploaded for processing.