How to Fix Acrobat Pro Not Recognizing a Scanner Sheet Feeder
Question details
Adobe Acrobat Pro fails to recognize the scanner's automatic document feeder after the scanner software was reinstalled.

- Product
- Adobe Acrobat Pro
- Device & OS
- not provided
- Scenario
- Attempting to scan a multi-page document using an HP Scanjet automatic document feeder via Acrobat Pro.
- Observed behavior
- The automatic document feeder is no longer detected or listed as an available scanning source within the Acrobat Pro interface.
Ensure your scanner is securely connected to your computer and powered on. Test the automatic document feeder using the manufacturer's default scanning utility to confirm there are no underlying hardware malfunctions.
Verify and Select the Correct TWAIN/WIA Driver in Acrobat
Acrobat may have defaulted to a basic driver that does not support the sheet feeder. Manually selecting the correct manufacturer driver restores full functionality.
When scanner software is reinstalled, Adobe Acrobat Pro may lose its previous driver preferences and default to a generic driver. To utilize the automatic document feeder, Acrobat must communicate through the specific TWAIN or WIA driver provided by your scanner's manufacturer.
Launch Adobe Acrobat Pro, go to 'File' > 'Create' > 'PDF from Scanner', and click on 'Configure Presets' or 'Custom Scan'.
In the scanner selection dropdown menu, look at the available devices connected to your system.
Choose the driver that specifically lists 'TWAIN' or 'WIA' along with your scanner model (e.g., HP Scanjet). Avoid any generic USB device options.
Once the correct driver is selected, look for a 'Paper Source' dropdown and ensure 'Automatic Document Feeder (ADF)' is selected before initiating the scan.

Reinstall or Repair the Scanner Software and Drivers
Corrupted or incomplete scanner drivers can prevent PDF software from detecting advanced hardware features like the sheet feeder.
Use WPS PDF to Scan Documents from a Sheet Feeder
If you continue experiencing hardware detection issues with Acrobat Pro, WPS Office offers a powerful and lightweight PDF tool that easily interfaces with standard TWAIN and WIA scanners to create multi-page PDFs.
- 1. Open WPS Office: Launch WPS Office on your computer and select the 'PDF' tab from the main workspace.
- 2. Launch the Scanner Tool: Click on 'Create PDF' and select 'From Scanner' in the top menu ribbon.
- 3. Select Your Scanner: Choose your scanner model from the device list, making sure the TWAIN or WIA driver is selected.
- 4. Scan via Sheet Feeder: Set your paper source to the document feeder, click 'Scan', and wait for WPS to compile your pages into a new PDF document.

Frequently Asked Questions
Why does my scanner work in other applications but not in Acrobat Pro?
Different applications use different driver protocols. Your scanner might work in a basic utility using simple WIA drivers, but Acrobat Pro often requires specific TWAIN driver integration to access advanced features like the automatic document feeder. If the TWAIN driver is missing or corrupted, Acrobat will fail to recognize the feeder.
What is the difference between TWAIN and WIA scanner drivers?
TWAIN is a universal software protocol that provides advanced control over scanner hardware features, including resolution, color depth, and sheet feeders. WIA (Windows Image Acquisition) is a basic Microsoft protocol designed for simple imaging tasks. Selecting the TWAIN driver usually provides better compatibility for multi-page document scanning in professional PDF editors.
How can I verify if my HP Scanjet sheet feeder is physically functioning?
You can isolate the issue by using the default Windows 'Fax and Scan' app or the HP Smart scanning utility. Load a document into the feeder and start a scan from the software. If the paper feeds correctly, the hardware is functioning normally, confirming that the issue lies with Acrobat Pro's driver configuration.




