black and white 300 dpi pdf output in dompdf

Question

I'm using dompdf for generating pdf with php.

The generated output is 300 DPI, 24 bit color.

I need output as 300 DPI, Black and White color.

Is it possible to achieve in dompdf?

I'm in trouble. If anybody have solved this issue before please help me.

Answer 1

AFAIK a pdf as such cannot be set to be black and white. There are two possible options:

1. Create a stylesheet which renders your page in black and white. This stylesheet could also be used to provide users with a print view of the page.
2. Use ImageMagick to convert your pdf to black and white after creation. See this question for reference.