add watermark to powerpoint
I want 开发者_高级运维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?
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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