PDF Printing Issues

Fix Adobe Acrobat Assistive Technology Print Error and Spooler Hang for PDFs

Adam DavisAdam Davis Nov 5, 2026 869 views

Question details

Users are encountering assistive technology warning messages and print jobs indefinitely hanging in the system print spooler when attempting to print PDFs via Acrobat Pro on business-managed systems.

How to Fix Adobe Acrobat Assistive Technology Print Errors and Spooler Hangs
Product
Adobe Acrobat Pro
Device & OS
not provided
Scenario
Distributing and using Acrobat Pro on business-managed computers to print standard PDF documents.
Observed behavior
On one machine, an 'assistive technology' warning is triggered during printing. On a second machine, the software processes the print job, but it gets stuck in the print spooler without printing.
Before you start

Verify that your printer is powered on and properly connected to your network, and ensure you have administrative privileges on the business-managed system to manage Windows services.

Solution 1Recommended

Clear and Restart the Windows Print Spooler

Use this solution to forcefully remove stuck PDF print jobs that are hanging in the background, allowing the system to accept new printing tasks.

When a print job hangs in the spooler, it blocks all subsequent printing attempts from any application. Clearing the temporary spool files and restarting the service often resolves localized freezing issues.

1
Open Windows Services

Press the Windows key + R to open the Run dialog, type 'services.msc', and press Enter.

2
Stop the Spooler Service

Scroll down the list to locate 'Print Spooler'. Right-click on it and select 'Stop'. Leave the Services window open.

3
Clear Spooler Files

Open File Explorer and navigate to 'C:\Windows\System32\spool\PRINTERS'. Delete all the files inside this folder to clear the stuck print jobs.

4
Restart the Service

Return to the Services window, right-click on 'Print Spooler', and select 'Start'. Attempt to print your PDF again.

Clear and Restart the Windows Print Spooler
Administrator Access: You must have administrator rights on the computer to delete files within the System32 directory and restart system services.

Print PDFs Seamlessly with WPS Office

Avoid complex assistive technology errors and print spooler hangs by using WPS Office. Its built-in, lightweight PDF reader lets you view, manage, and print PDF documents quickly and reliably without heavy background processes.

  1. 1. Download and Install: Download and install WPS Office Free on your computer.
  2. 2. Open WPS Office: Launch WPS Office and click on 'PDF' from the home screen sidebar.
  3. 3. Open the Document: Select and open the PDF document you need to print.
  4. 4. Initiate Print: Click the 'Print' icon on the top toolbar or press Ctrl + P.
  5. 5. Complete Printing: Select your target printer and click 'Print' to bypass standard spooler errors completely.
Lightweight architecture prevents Windows print spooler hangs and errors.Fully compatible with all standard Adobe PDF file formats and document structures.Free and intuitive interface for seamless PDF viewing, editing, and printing.All-in-one suite that perfectly handles Word, Excel, PowerPoint, and PDF workflows.
QA img-9

Frequently Asked Questions

Why does Adobe Acrobat show an 'assistive technology' warning when printing?

Acrobat may try to read or prepare the document for screen readers before processing the print job. If the software gets stuck analyzing the document structure, it throws this warning. Disabling 'Enable Assistive Technology Support' in the Accessibility preferences typically resolves this.

What causes a PDF print job to hang in the Windows spooler?

A print job can hang in the spooler due to corrupted spool files, outdated printer drivers, complex PDF graphics that the printer memory cannot process, or conflicts with enterprise security software monitoring the print queue.

Can enterprise deployment policies affect PDF printing?

Yes. On business-managed systems, strict security policies, antivirus whitelisting rules, or Group Policy objects (GPOs) restricting spooler access can intercept and block print jobs initiated by Acrobat, causing them to hang.

How do I test if the printer or the PDF file is causing the error?

Try printing a simple plain text document from Notepad. If it prints successfully, the issue is likely isolated to the specific PDF file or your PDF software. You can also try printing a different, locally saved PDF file to verify.