How to OCR and Edit Text in Scanned PDFs with Adobe Acrobat
Question details
Determine whether Adobe Acrobat can convert scanned PDF documents into editable text using Optical Character Recognition (OCR) and learn the exact tools required.
- Product
- Adobe Acrobat
- Device & OS
- not provided
- Scenario
- Attempting to modify the content of an image-based PDF that was created using a scanner.
- Observed behavior
- Scanned PDFs behave as static images by default and cannot be edited until an OCR process creates a searchable and editable text layer.
Verify that you have an active subscription to Adobe Acrobat Pro, as the free Adobe Acrobat Reader does not include OCR or text-editing capabilities for scanned documents.
Use Acrobat Pro's Scan & OCR Tool to Recognize and Edit Text
Run the built-in text recognition feature in Adobe Acrobat Pro to convert the flat image of the scan into fully editable text elements.
A scanned PDF is inherently an image file. To modify the text within it, you must first instruct Acrobat to analyze the image and generate a text layer using Optical Character Recognition (OCR). Once the text is recognized, the standard Edit PDF tool can be used to alter words, fonts, and formatting.
Launch Adobe Acrobat Pro and open your scanned PDF file.
In the right-hand pane or under the 'Tools' menu, select the 'Scan & OCR' option.
Click on 'Recognize Text' in the toolbar and select 'In This File'. Click the 'Recognize Text' button to process the document.
Once the OCR process finishes, close the Scan & OCR toolbar and select the 'Edit PDF' tool from the right pane. You can now click on the text blocks to type, delete, or reformat the content.
Easily OCR and Edit Scanned PDFs with WPS Office
WPS Office offers a robust built-in PDF editor with highly accurate OCR capabilities. You can effortlessly convert image-based scanned documents into editable text without requiring an expensive premium subscription.
- 1. Open your Scanned PDF: Launch WPS Office and open your scanned document using the WPS PDF editor.
- 2. Apply OCR Processing: Navigate to the 'Tools' tab on the top ribbon and click on 'OCR'. Follow the prompt to extract and recognize the text.
- 3. Edit and Save: Once the text is recognized, switch to the 'Edit' tab. Click on any text block to modify the content, then save your updated PDF.
Frequently Asked Questions
Why is my scanned PDF not editable after opening it in Acrobat?
If you are using the free Adobe Acrobat Reader, the software lacks advanced editing and OCR tools. You need Acrobat Standard or Pro to use the 'Recognize Text' feature and convert the image into editable text.
Can I export the OCR text to a Word document instead of editing the PDF?
Yes. After running OCR to recognize the text, you can use the 'Export PDF' tool to convert the document into a fully editable Microsoft Word (.docx) format.
How can I improve OCR accuracy for poor quality scans?
To get the best OCR results, ensure the original scan is captured at a high resolution (at least 300 DPI). The document should have high contrast between the text and background, without severe skewing, shadows, or blurry pages.
Does OCR software work on handwritten text?
Standard OCR technology is primarily optimized for printed or typed text. While it may recognize exceptionally clear block-letter handwriting, the accuracy drops significantly for cursive or messy handwritten notes.
