Fix Acrobat OCR Error Reporting Low Memory or Disk Space
Question details
Users encounter a low-memory or low-disk-space error message when attempting to run OCR in Acrobat DC Pro.
- Product
- Adobe Acrobat DC Pro
- Device & OS
- not provided
- Scenario
- Running Optical Character Recognition (OCR) on a PDF document using a newly set up computer.
- Observed behavior
- Acrobat displays a low-memory or low-disk-space error and fails to complete the OCR process, and running the standard installation repair tool does not fix the issue.
Verify that your computer has sufficient available RAM and free storage space on the drive where Acrobat is installed before proceeding with further software troubleshooting.
Update Acrobat and Verify System Resources
Install the latest Acrobat updates to patch known OCR bugs and test the OCR process on a local file.
Acrobat DC Pro sometimes throws false low-memory or disk space errors due to software bugs or network drive conflicts. Ensuring you are on the latest patch and working locally often resolves the issue.
Press Ctrl+Shift+Esc to open Task Manager on Windows (or Activity Monitor on Mac) and verify that you have at least 2GB of available RAM.
Open Adobe Acrobat, navigate to Help > About Acrobat, and note your version. Then, ensure the drive where Acrobat is installed (typically the C: drive) has ample free space.
In Acrobat, click on Help > Check for Updates in the top menu to download and install the newest patches that address OCR engine bugs.
Save a copy of your PDF directly to your computer's Desktop, open it in Acrobat, and attempt the OCR process again.
Clear the System Temporary Folder
Acrobat relies heavily on the system's Temp folder during OCR. Clearing out temporary files can resolve disk space limitations.
Use WPS PDF to Extract Text with Built-in OCR
If Acrobat continues to throw memory errors, you can seamlessly perform Optical Character Recognition (OCR) using WPS Office. Its lightweight PDF editor is optimized to run smoothly without consuming excessive system resources, making it an excellent alternative for scanning and editing documents.
- 1. Open your PDF: Launch WPS Office and open your scanned PDF document using the WPS PDF editor.
- 2. Access the OCR tool: Navigate to the 'Tools' tab in the top ribbon and select 'OCR' from the toolbar.
- 3. Choose an extraction mode: Select your desired extraction method from the side panel, such as 'Extract Text' or 'Convert to Word'.
- 4. Process the document: Select the language of your document and click 'Start OCR' to quickly process the file without system errors.
Frequently Asked Questions
Why does Acrobat say my disk is full when I have plenty of space?
This is often a false error caused by outdated Acrobat software, insufficient permissions for the system Temp folder, or network drive restrictions during the OCR unpacking process. Updating Acrobat and moving the file to your local desktop usually resolves this.
How much RAM is required to run OCR smoothly?
While minimum requirements state 2GB of RAM, running OCR on large, high-resolution scanned documents typically requires at least 4GB to 8GB of available system memory to prevent crashes or low-memory errors.
Does repairing the Acrobat installation fix OCR issues?
Repairing the installation fixes corrupted program files. However, if the OCR error is caused by a version bug, insufficient system Temp space, or a local file permission issue, a standard repair will not resolve the underlying problem.
