is unembedding embedded bitmap images possible?

[c.pfaffenbichler]

Good day! 

Do any of you know if it is possible to extract an embedded bitmap image (»bitmap« in the sense it is used in Photoshop, technically meaning a »1bit bitmap image«) from an ai-file? 

Unembedding does not seem to be an option for me, see screenshot of the attached file. 

Thanks for any insights! 

(Illustrator 26.0.1 on MacOS 10.15.7) 

[Monika Gause]

Still does not work when the object is selcted?

[Ton Frederiks]

I can reproduce that, once embedded you cannot unembed it.

You can open the pdf in Photoshop as greyscale and convert it to bitmap with a 50% threshold.

[c.pfaffenbichler]

Please forgive the late reply, somehow I dind’t get notifications about your posts. 

Thanks for getting back to me! 

@Monika Gause, selecting the object doesn’t make a difference. 

@Ton Frederiks , that approach would seem to force a resampling of the image, so might incur a (slight) degeneration of image quality. 

[c.pfaffenbichler]

I guess I was mistaken, under certain circumstances (no rotation, converting at the exact effective resolution, …) the bitmap image will be mapped exactly when Importing the ai in Photoshop. 

[Ton Frederiks · Accepted solution]

See: https://illustrator.uservoice.com/forums/601447-illustrator-desktop-bugs/suggestions/33723904-unembe...

Export as .bmp seems to work with the correct resolution settings (and is faster than the Photoshop workaround).

[c.pfaffenbichler]

Thanks; I hadn’t searched there, just on this Forum …