How to Fix Acrobat Not Using ADF for Duplex Scanning
Question details
The user is unable to perform duplex scanning using the Automatic Document Feeder (ADF) in Adobe Acrobat, as the software defaults to the flatbed scanner.
- Product
- Adobe Acrobat
- Device & OS
- not provided
- Scenario
- Attempting to scan double-sided documents into a PDF using a network-connected HP printer and its Automatic Document Feeder.
- Observed behavior
- Acrobat bypasses the ADF and uses the flatbed scanner instead, often limiting duplex scanning options due to generic network WIA drivers or hidden native interfaces.
Ensure your HP printer is powered on, connected to the same network as your computer, and that you have administrative privileges to install new manufacturer drivers.
Install the Manufacturer's TWAIN Driver and Use Native Interface
Switching from a generic WIA driver to the manufacturer's full TWAIN driver ensures Acrobat can access advanced hardware features like the ADF and duplex scanning.
Windows often automatically installs a generic WIA (Windows Image Acquisition) driver for network printers. While functional for basic scans, WIA drivers frequently lack support for advanced features like ADF and duplexing in third-party software like Acrobat.
Visit the official HP support website, locate your specific printer model, and download the 'Full Feature Software and Drivers' package.
Open Adobe Acrobat, navigate to the 'File' menu, select 'Create', and then click on 'PDF from Scanner'.
In the scanner selection dropdown, choose your newly installed TWAIN scanner driver. Be sure to avoid any option that has 'WIA' in its name.
Click on 'Options' or 'Settings' within the Acrobat scan dialog and ensure the option to show the scanner's native user interface is checked.
Initiate the scan. When the HP native interface window appears, manually select 'Document Feeder (ADF)' and enable 'Duplex' or '2-sided' scanning before proceeding.
Scan Using HP Software and Combine Pages in Acrobat
If Acrobat still cannot trigger the duplex ADF feature, use the printer's dedicated software to perform the scan and then merge the resulting files.
Seamlessly Create and Combine PDFs with WPS Office
If you are struggling with scanner driver compatibility in Acrobat, WPS Office provides a highly intuitive PDF toolkit. You can easily import scanned images, convert them to high-quality PDFs, and merge multiple documents into a single file without complex driver configurations.
- 1. Launch WPS PDF: Open WPS Office and click on 'PDF' from the main home screen to access the PDF toolkit.
- 2. Import Scanned Images: Select 'Picture to PDF' to import your pre-scanned double-sided document images directly into the software.
- 3. Merge Documents: To merge existing scanned PDFs, navigate to the 'Tools' tab and select the 'Merge PDF' feature.
- 4. Finalize the File: Add your scanned files, drag them to arrange the correct page order, and click 'Merge' to generate your final document.
Frequently Asked Questions
What is the difference between WIA and TWAIN scanner drivers?
WIA (Windows Image Acquisition) is a basic Microsoft driver that often lacks access to advanced hardware features. TWAIN is a standardized driver provided by scanner manufacturers that gives applications like Acrobat full control over features like the ADF and duplex scanning.
Why is the 'Duplex' option grayed out in Acrobat?
This typically occurs when Acrobat is using a WIA driver or a generic network driver that does not communicate the duplex capability to the software. Switching to a TWAIN driver and checking the box to use the scanner's native interface usually resolves this issue.
Can I use the ADF for double-sided scanning over a wireless network?
Yes, but you must ensure that the manufacturer's full network-capable TWAIN driver is installed on your PC. Generic wireless drivers installed by default by Windows often limit scanning capabilities to the flatbed only.
