How to find pdf file is color or black&white or grayscale

[hardikv]

Hi,

i want to find the pdf file is color or black&white or grayscale. i have one pdf file into that i have assign some annotation and then i want to check that pdf file is color or grayscale or black&white and then i want to use BurnAnnotationToPage() method to burn the pdf file.
i need to pass two paremeter in BurnAnnotationToPage(), 1st is true and second parameter is GDPictureOutputIntent that is color or black&white or grayscale based on PDF file is color or black&white or grayscale.

please provide with example.

Thanks

[hardikv]

Hi,

Please provide me the solution.

[Loïc]

Hello,

Actually we do not provide efficient way to detect the color scheme of a document. Such feature is usually called "color detection".
We are doing lot of research on this field and we plan to introduce color detection feature and PDF MRC support in our SDK in 2013.

We've already implemented color detection in one of our end user product, as explained in one of our ORPALIS's blog ticket:
Automatic color detection: how to dramatically reduce the size of your documents


Kind regards,

Loïc