ASPOSE.SLIDES · WATERMARK · 4 PLATFORMS
Add Watermarks to PowerPoint and OpenDocument Presentations
Learn how to add text and image watermarks to presentations with Python, Java, C++, and C#.
PowerPoint Watermark Code Samples
All Aspose.Slides productsFAQ
- Can a watermark be added to every slide at once?Yes. Adding it to the slide master applies it across the deck, rather than repeating the shape on each slide.
- Can a watermark be removed again?If it was added as a shape, yes — find the shape and delete it. That also means a watermark added this way is not a security control; it marks a document, it does not protect it.
- Can I use an image rather than text?Yes. Both text and image watermarks are supported, with control over position, size, rotation and transparency.
- Does a watermark survive conversion to PDF?Yes. It is a shape on the slide, so it renders into the PDF like any other content.