I have a pdf document that has a black background with (mostly) white text (highlighted text is blue).
Is there any way using Acrobat Pro X to invert that to get a "normal" document with black text on a white background?
If I try Tools > Pages > Edit Page Design > Background > Remove Background, there's a progress bar that says "Removing background," but after a short time that goes away having done nothing. If I try Update Background, I get an error message: "Adobe cannot find a background in this file. If you see a background, it was not added in Acrobat or by an AdobePDFMaker, and cannot be detected as such."
The only thing I can think of to try is to print the document and then scan it, setting your scanner to reverse black and white.