Protecting Watermark using Unreadable Characters
This feature is supported since version 18.8.
This feature allows strengthening the protection of text watermark. Using unreadable characters in the watermark text forbids the modification using Find and Replace dialog. The following code sample shows how to include unreadable characters in watermark text.
Getting Slide Dimensions
If for some reasons you want to use absolute sizing and positioning, you may also need to get the size of the slide. Use below code to get the dimensions of a particular slide.