To fix OCR issues in Adobe Acrobat DC, you should primarily use the "Correct Recognized Text" feature to manually review and repair misidentified words. If the OCR engine is failing entirely or producing gibberish, you can often "reset" the page's data by converting it to a TIFF and back to PDF. Quick Fix: Review and Correct "Suspects" Acrobat marks text it is uncertain about as "suspects." Open the Tool: Go to All Tools > Scan & OCR.

6. When Acrobat DC Cannot Fix: Third-Party OCR Alternatives

If Adobe fails repeatedly, use these as fallback, then re-import to PDF:

3. Step-by-Step OCR Fix Procedure

3.1 Pre-OCR Preparation (Critical)

  • Check resolution: Tools → Print Production → Preflight → “List page objects” → ensure images are ≥ 150 DPI (300 DPI ideal).
  • Deskew: Enhance Scans → Correct Skew.
  • Contrast enhancement: Enhance Scans → Optimize Scanned Page → Contrast/Brightness (set to 40–60%).

4.3 Large Batch OCR (Multiple Files)

  • Action Wizard: Tools → Action Wizard → New Action → “Recognize Text” → Save & run on folder.
  • Output: Searchable PDFs, preserve original folder structure.

8. Troubleshooting Flowchart (Text Summary)

OCR fails/gibberish
│
├─ Is scan ≥300 DPI?
│   ├─ No → Rescan or Enhance Scans→Resample
│   └─ Yes → Next
│
├─ Is OCR option available?
│   ├─ No → Document has text layer → Remove OCR first
│   └─ Yes → Next
│
├─ Run Recognize Text → Settings
│   ├─ Language = document language
│   ├─ Output = Searchable Image
│   └─ Downsample = 300 DPI
│
├─ Result still bad?
│   ├─ Try Preflight fixups (Smooth, Fix OCR layer)
│   ├─ Reset OCR plugin (delete OCR.ini)
│   └─ Reset Acrobat preferences
│
└─ Still failing? → Use external OCR (Tesseract/ABBYY) → re-import to PDF

Option A: Adobe Scan (Mobile)

Scan the physical document again using Adobe Scan (iOS/Android). Its mobile OCR engine is newer and more forgiving than Acrobat DC's legacy engine. Save as PDF and open in Acrobat DC for editing.

Reliability: Reviewers on G2 and Capterra praise its robustness and ability to handle large, complex files without crashing. 🛠️ The Bad: Common OCR Problems OCR not recognizing text? Here's what to do | Adobe Acrobat

When Acrobat is used to OCR a document image into a text searchable PDF file, its algorithms somehow watch for words (shapes, etc.

Fix 2: Convert to Image and Back (The Nuclear Button)

If Acrobat refuses to recognize text, the file may be damaged at the object level.