Fix Acrobat Entry Point Not Found Error for Scanned PDFs
Question details
The user is unable to edit newly scanned PDF documents in Adobe Acrobat DC due to an 'Entry point not found' error, despite older scans remaining fully editable.

- Product
- Adobe Acrobat DC
- Device & OS
- not provided
- Scenario
- Attempting to use Adobe Acrobat's editing or OCR features on a document freshly scanned from an HP LaserJet Pro MFP M479fdw.
- Observed behavior
- Acrobat fails to process the newly scanned document, displaying an 'Entry point not found' error indicating it cannot access the necessary text recognition (OCR) service.
Verify that your HP scanner firmware is fully updated and check if Adobe Acrobat has any pending updates, as Adobe frequently releases patches for recognition-service access bugs.
Repair Adobe Acrobat Installation
Running the built-in repair tool can replace corrupted or missing DLL files that trigger the 'Entry point not found' error during OCR.
This error generally occurs when Acrobat's recognition service is blocked, corrupted, or missing a critical system file needed to process scanned images into text.
Save your work and close Adobe Acrobat DC. Open the Task Manager (Ctrl + Shift + Esc) and ensure all Adobe-related background processes are terminated.
Reopen Adobe Acrobat DC. Click on 'Help' in the top menu bar, then select 'Repair Installation'. Follow the on-screen prompts to allow the installer to verify and replace missing components.
After the repair finishes and you have restarted your computer, open Acrobat again. Go to 'Help' > 'Check for Updates' to ensure you are running the latest version with current OCR service patches.

Reset Acrobat Preferences and Scanner Settings
Resetting preferences can clear configuration glitches preventing the recognition service from accessing the HP scanner output.
Edit Scanned PDFs Effortlessly with WPS Office
If Adobe Acrobat's recognition service continues to crash or display entry point errors, you can easily bypass the issue using WPS PDF. Its powerful built-in OCR (Optical Character Recognition) engine accurately extracts text from scanned documents, allowing you to edit them instantly without extensive troubleshooting.
- 1. Open the scanned file: Launch WPS Office and click on 'Open' to select the PDF you scanned from your HP LaserJet printer.
- 2. Activate the OCR tool: Navigate to the 'Tools' tab on the top ribbon and click on the 'OCR' button to analyze the scanned document.
- 3. Convert to editable text: Choose 'Convert to Editable PDF' or 'Extract Text' from the prompt. WPS PDF will process the image and make the text fully selectable and modifiable.
- 4. Edit and save: Click directly into the text blocks to make your edits. Once finished, click 'Menu' > 'Save As' to export your updated PDF.

Frequently Asked Questions
Why does Acrobat show 'Entry point not found' only for new HP scans?
This happens because older scans might have already been processed into standard text, while new scans require Acrobat to trigger its recognition service (OCR) upon opening. If the software component handling this service is corrupted, the entry point error appears.
Can I edit a scanned PDF if the OCR service fails?
Without OCR, a scanned PDF is just an image. You cannot edit the text directly unless you use alternative software with a working OCR engine, such as WPS PDF, or fix the recognition service in your current application.
How do I fix Acrobat recognition-service access errors?
Adobe typically recommends running the 'Repair Installation' tool from the Help menu, ensuring your software is fully up to date, and verifying that no third-party antivirus is blocking Adobe's background processes.
Is this an issue with the HP LaserJet Pro MFP M479fdw scanner?
No, the 'Entry point not found' error is a software-level issue within Adobe Acrobat DC's file handling or DLL registry, not a hardware fault with the HP printer itself.




