How does one OCR white text on black background?

[1ConfussedUser]

I have a scanned document with white text on a black background and some black text on white background.

The OCR skips the white image text but converts the black image text to editable text.

How does one get the OCR to conver both white and black image text to editable text?

[Luke Jennings]

Do you have good contrast in your scan?

[1ConfussedUser]

The letters are clear and appear without distortion.

On the same page black text is recognized and convert to editable text by
OCR without issue.

White text on black background is not converted from image to editable text
by OCR. The white text is left as an image.
--
David’s mobile

[Luke Jennings]

I thought white type recognition worked, as long as you have a nice solid black and clean white. If that's not the case, a work-around would be to open the scan in Photoshop, make a selection around the white type areas and go to File> Adjustments> Invert, save, then OCR in Acrobat.

[Sharon235950443sje]

Unfortunately, not always. White letters on dark blue are not captured. 

[Luke Jennings3]

You could change the dark blue to black using a preflight profile, here is a link to a related discussion:

https://community.adobe.com/t5/acrobat-discussions/how-to-change-the-background-color-in-pdf-documen...

[Tunella]

This worked - I inverted the colors in Photoshop and Adobe was able to recognize the text - thanks! 🙂