Re: How to have monocrome "Dark Blue" rather than "Black" for the following operation?

On Mon, 3 Jul 2023, Susmita/Rajib wrote:
>
> Assuming that I have a formatted text only pdf file with the name
> "name.pdf", I can use the following code to batch-convert all the
> pages as one monocrome black-white image for each page with the
> following command-line:
>
> convert  -density 100 name.pdf -colorspace Gray  name-%03d.jpg
>
> If I want a Dark Blue text with a transparent background for each
> pages, instead of Black, how should the command line be altered?
>
> I checked the man page for the colorspace choices. But I can't make
> out how to set a single colour for the monocrome jpeg image?

Your first challenge would be that the JPEG format does not support 
transparency.  GIF and PNG formats do.

Bob
-- 
Bob Friesenhahn
[email protected], http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/
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