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ABBYY® FineReader PDF Users Guide
Background recognition
The PDF Editor allows you to search and copy text and pictures in PDF documents without a text layer,
such as scanned documents and documents created from image files. This is possible thanks to an
OCR process that runs in the background.
Background recognition is enabled by default and starts automatically when you open a PDF
document.
The background recognition process does not change the contents of the PDF file. Instead, it adds a
temporary text layer that will not be available when you open the document in other applications.
If you want to make the document searchable in other applications, you will need to save the text
layer created by the background recognition process. To do this, click the button on the toolbar
in the Document tab and select Recognize Document... from the drop-down list. See also:
Recognizing text .
Important! If the search or copy functions don't work properly, check that the right OCR
languages are selected for the document. See also: Document features to consider prior to OCR .
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