add watermark to powerpoint

StackOverflow https://stackoverflow.com/questions/2908666

Question

I want to add watermark to powerpoint file from c# by using powerpoint object library but I could not find any example/documentation which explains how to do it.

Is it possible at all? Any hints or suggestions?

Was it helpful?

Solution

You need to make add Shape, set TextFrame.TextRange.Text to some string, set TextFrame.TextRange.Font to something big, rotate the shape, and send it to back.

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