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How to add watermark image at center of the page to existing .pdf?

Dear All,


how to add watermark image at center of the page to existing .pdf?

please help

thanks & regards
Win

Hi Winanjaya,


Thanks for contacting support.

Please visit the following link for required information on Adding Image Stamp in PDF File

In order to center align the image stamp, please try using

imageStamp.HorizontalAlignment = Aspose.Pdf.HorizontalAlignment.Center;<o:p></o:p>

imageStamp.VerticalAlignment
= VerticalAlignment.Center;