Add text - change B/W to color-tif?

[Peter2]

I have TIF, 1 bit, b/w, 400 DPI, Group 4 compression. (285 kB)

Then I use batch-jobs to "add a text" (black color) - I get a 24 bit TIF, LZW compression, - 4300 kB

Only when I add a conversion "set all to black" I get again a 1 bit tif with 290 kB.

And the conversion from 285 to 4300 to 290 kB takes time ...

Question:
How can I add a black text to a black/white 1 bit tif without producing a 24 bit TIF?

Regards

Peter

[xnview]

How can I add a black text to a black/white 1 bit tif without producing a 24 bit TIF?

Currently it's not possible. 'Add text' convert always the picture