Adding watermark changes B&W compressed image to Color image

[Bharath]

Hi,

I was wondering if this is the right behaviour after I add water mark and save of image which had setting of Black and White with compression the water marked image would be a color image.

Is it possible to retain the properties of image as well add watermark.

Below is the code I used.

MyImaging.DrawRotatedText_2(nImageID, 315,swaterm, 500, 1800, 72, 0,MyImaging.ARGBI(92,128,128,128), "Arial", true);
MyImaging.SaveAsTIFF(nImageID, sPagename, 65536);

Thanks,
Bharath

[SamiKharma]

Hi,

No, simply because you are adding a color, which requires a bitdepth that supports color. Simply, after you Draw the Text, just convert the image to 1bpp again using:
https://www.gdpicture.com/guides/gdpicture/v9/html/con ... teger.html

Best Regards,
Sami