If the file is too large or contains corrupted images, OCR will fail. Go to > Save as Other > Optimized PDF .
How to Fix Adobe Acrobat DC OCR Not Working: Ultimate Troubleshooting Guide
Windows installations feature a built-in self-repair utility that replaces missing OCR engine files. Open Adobe Acrobat DC. Click in the top menu bar. Select Repair Installation . adobe acrobat dc ocr fix
Always keep original scans and create OCR’d copies separately.
Navigate to the official portal via your browser. Log in with your Adobe ID credentials. If the file is too large or contains
Open the PDF, press Ctrl + D (or Cmd + D ), and click the Security tab. If "Content Copying" or "Document Assembly" is marked as Not Allowed, you must remove the password protection before running OCR.
For garbled output in a specific language (e.g., Korean, Chinese, Japanese): Open Adobe Acrobat DC
In the OCR settings menu, check the box for De-skew . This automatically straightens tilted text alignments before scanning. 5. Clean Reinstallation via Adobe Cleaner Tool
If the OCR service fails to launch or "Acrobat is not responding," the issue may be with the software installation itself. Acrobat cannot run OCR due to renderable text on page
If your OCR produces random Western characters for a foreign language, you likely lack the language module.
If the document already has a partial or hidden text layer, Acrobat will block OCR. Use the Sanitize Document or Remove Hidden Information tool to strip existing layers before re-running OCR. Solution 2: The TIFF Workaround Open the problematic PDF in Acrobat.