Roll out e-signature capability for high-volume expense and routine HR forms by enabling bulk-send access for managers…
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.
Recognizing text in a scanned document means turning the image of words into actual text data. This is important because it makes your document searchable, so you can easily find specific words or phrases. It also allows you to copy and edit the text, which you cannot do with just an image.
Acrobat's OCR feature is designed to work on pages that are purely images, like photos of documents. If a page already has real, selectable text, Acrobat will not try to recognize text on it. The error 'page contains renderable text' means the page already has text that can be read by a computer, so OCR is not needed or possible for that specific part of the document.
| Feature | Desktop App (Manual) | API (Automated) |
|---|---|---|
| Process | You click through steps for each document. | Code runs automatically for many documents. |
| Volume | Best for a few documents at a time. | Best for high-volume, many documents. |
| Speed | Depends on your clicks and computer speed. | Very fast for bulk processing. |
| Integration | Standalone tool on your computer. | Can be built into other software systems. |