I have a color pdf document that I want to convert into a black and white pdf document. Is it currently possible to do this with pdf or pdf.kit? If so, what is the best way to go about doing this?
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I am sorry to inform you that currently conversion of Pdf into a Black and White Pdf is currently not supported.
As a workaround, you can convert a Pdf file into BMP image using Aspose.Pdf.Kit. Convert the Image into Black & White and finally create a Pdf with Aspose.Pdf, using that Image.
For information on converting Pdf to image file, please visit Convert the PDF Document to Specified Images
For information on creating Pdf file from image file, please visit Use Image from Local Disk