Add Watermark to PDF
Add text or image watermarks to PDFs — opacity, position, tiling, page range — locally, no upload.
Processing and data safety
Section titled “Processing and data safety”This tool runs entirely in your browser — your files are never uploaded to a server.
Input and output
Section titled “Input and output”- Formats: PDF
- Flow: PDF → watermarked PDF
How to use
Section titled “How to use”- Choose “Text watermark” or “Image watermark” (PNG/JPG), then set the style — the opacity slider shows its current value.
- Open a PDF — multiple files run as a batch.
- Click “Add watermark” — the watermarked PDF downloads when processing finishes (batch results pack as a ZIP).
Key details and limits
Section titled “Key details and limits”- Text watermarks: opacity, font size (4–400), rotation (±360°), color, 9-grid position, tiling and page range are adjustable; inputs are clamped to those ranges.
- Image watermarks: PNG/JPG only; width is a percentage of page width (1–100%) with the aspect ratio kept.
- Complex fonts may be substituted.
Common use cases
Section titled “Common use cases”- Drop in a PDF → set a text or image watermark → download (ZIP for batches)