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seamartin1247
seamartin1247Correct answer
Inspiring
Aug 9, 2016 12:54 PM UTC

Correct Answer:

Found out the hard way. It can't OCR white text on a black background. I inverted the image in photoshop and job done, Acrobat recognised the text!!

Thanks for the posted answers.

5 replies

seamartin1247
seamartin1247AuthorCorrect answer
Inspiring
Aug 9, 2016 12:54 PM UTC

Correct Answer:

Found out the hard way. It can't OCR white text on a black background. I inverted the image in photoshop and job done, Acrobat recognised the text!!

Thanks for the posted answers.

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Karl Heinz  Kremer
Community Expert
Community Expert
Aug 9, 2016 1:08 PM UTC

Acrobat's OCR is pretty good, but no match for dedicated OCR applications. For more challenging OCR jobs (like your's, or two different languages in the same document), I keep a dedicated OCR application around. It's a bit more cumbersome to use vs. just clicking the "recognize text in this file" tool, but when needed, it does a better job.

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Participant
Jul 13, 2022 2:34 AM UTC

Hi Karl, great suggestion. Any dedicated OCR applications you would recommend?

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try67
Community Expert
Community Expert
Aug 9, 2016 12:22 PM UTC

The image format doesn't matter. What matters is the resolution of the image (the higher the better) and the quality of the scan and the text in it.

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Legend
Aug 9, 2016 12:08 PM UTC

Is the PNG at 200 ppi or more, a scan of a clean white paper original (not photocopy or fax) with text in paragraphs of common English?

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