Can I add an image watermark (logo) to a PDF?+
Yes. Upload your PNG or JPEG logo and position it on the page. Control opacity (semi-transparent watermarks are standard) and scale. SVG logos are automatically rasterised before embedding.
Can a PDF watermark be removed?+
Text watermarks applied at the PDF layer can be removed by skilled users with PDF editing tools. For higher security, flatten the PDF to rasterise all layers - this makes watermark removal much harder but also prevents text selection.
What opacity should I use for a watermark?+
20-30% opacity is common for background watermarks (visible but not distracting). 50-60% for prominent security watermarks. 100% for visible branding stamps on less critical documents.
Can I watermark only specific pages?+
Yes. Set the page range (e.g. pages 1, 3-5, 10) to apply the watermark selectively. Useful for marking confidential sections without watermarking cover pages or appendices.