Poorly scanned bank pages cost me an hour every engagement. Identify the recurring scanning defects we accept (orienta…
Open Adobe Acrobat Pro DC.
Go to Tools and select Recognize Text.
Click Recognize Text in Multiple Files.
Click Add Files and select all the PDF files you want to OCR, or add an entire folder.
Click OK to proceed to the OCR settings dialog.
Specify your OCR settings, such as language and output style.
RecommendationFor best OCR accuracy, source PDFs should be scanned at 300 dpi.
Click Recognize Text to start the batch OCR process.
Best practiceIf you have a large batch, process files in smaller groups to avoid performance issues or crashes.
You can monitor batch OCR progress in the status bar and review each file as it completes.
This runs in the Acrobat app - there is no separate API for this task.
Renderable text means the PDF page already contains actual text characters, not just an image of text. Acrobat's OCR feature is designed to convert images of text into real text. If the text is already 'real', OCR is not needed and will not run, giving you an error message. You can usually select and copy this text directly.
If your scanned statement is blurry, the OCR might struggle to accurately recognize the text. OCR works best with clear, high-resolution images. While it might still create a searchable layer, the accuracy could be low, leading to mistakes in the recognized text. For better results, try to rescan the document at a higher quality, ideally 300 dpi, to ensure the text is sharp and clear before running OCR.
Choosing the correct language for OCR is very important because the recognition engine uses language-specific rules and dictionaries. If you select the wrong language, the OCR might misinterpret characters, leading to many errors in the recognized text. For example, it might confuse similar-looking letters or words that exist in one language but not another, making the searchable layer inaccurate.
| Feature | Scanning to PDF | Scan & OCR |
|---|---|---|
| Purpose | Creates a digital image of your paper document. | Adds a searchable text layer to an image-based PDF. |
| Result | An image-only PDF, not searchable or selectable. | A searchable PDF where you can select and copy text. |
| Function | Converts physical paper into a digital file. | Converts image text into editable/searchable text. |