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I would suggest you to please fill the Feature Request Form for the same so that your request could be passed on to the concerned team:
Thanks for your valuable feedback.
This is actually a bug I think.
Without this feature then certain images of signatures cant be applied. I have an image of my signature that appears normally rotated in every viewer except the acrobat DC app. The reason is that acrobat DC is ignoring the rotation information present in the jpg file. So acrobat reader displays the image sideways instead of considering the rotation information supplied in the image.
Same issue still. Imports my signature as a jpg and rotates 90 degrees so it vertically oriented. Rotating and saving the original does not fix the issue oddly enough. Annoying.