Comment OCR un document :

1. In Nitro Pro, open a PDF document you want to OCR
2. On the Review tab, click the OCR button in the Documents panel
3. In the Optical Character Recognition (OCR) dialog, choose whether the output text should be Searchable or Searchable and Editable
4. Click the Options button to select a target page range, and click Advanced to configure OCR preferences
5. Click OK to recognize the document’s text

How to OCR selective pages in a document:

1. From the navigation tabs (displayed along the left side of the Nitro Pro window), click the Pages tab
2. Right-click on the required pages in the Pages pane and select OCR Pages… (hold down Control to select many)
3. In the Optical Character Recognition (OCR) dialog, choose whether the output text should be Searchable or Searchable and Editable
4. Click the Options button to select a target page range, and click Advanced to configure OCR preferences
5. Click OK to recognize the document’s text