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How to convert color image to black and white/gray image in PDF

We can change color image to black and white/gray image in an existing PDF with the help of ExtractImages and ReplaceImage features and find the code snippet and sample below.

Code snippet for Converting Color image to black and white\gray image:

 

Code snippet to Replace image in PDF:

 

Sample:

http://www.syncfusion.com/downloads/support/directtrac/general/ze/Replace_Image-1538519391

 

Article ID: Published Date: Last Revised Date: Platform: Control:
7988 09/13/2017 09/14/2017 Windows Forms PDF
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