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I have a requirement to convert pdf to a searchable pdf, where a pdf page contains both text and images with text. therefore i want to extract text from images and add an overlay over the image to maintain the searchability of text and the images.
I'm using .net framework and tried using OCRSupportedType.SEARCHABLE_IMAGE_EXACT but it doesn't extract the text of the image. How to overcome this issue?
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Or any other way to automate the Recognize Text function in the tool?
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I'm a bit unclear. Are you talking a PDF of scanned images, or a PDF that includes a picture of a cat with a word on it, and you want the word?