Fix Adobe PDF Printer Missing After Acrobat Update on Windows
Question details
The user needs to restore the Adobe PDF printer which disappeared or installed incorrectly after updating Adobe Acrobat.

- Product
- Adobe Acrobat Pro DC
- Device & OS
- Windows 10 Pro
- Scenario
- Attempting to print to a PDF file using the virtual Adobe PDF printer after performing a software update or fresh installation.
- Observed behavior
- The Adobe PDF printer either fails to install completely or incorrectly assigns itself to the COM1 port instead of the standard Documents\*.pdf port.
Ensure you are logged into your Windows account with Administrator privileges, as modifying printer ports and restarting the Print Spooler service requires admin rights.
Restart Print Spooler and Repair Acrobat Installation
This method resolves underlying print spooler conflicts and allows Acrobat's built-in repair tool to correctly re-map the PDF printer port.
Often, the Windows Print Spooler holds onto old printer configurations during an update, preventing the new Adobe PDF printer from mapping correctly to the Documents folder.
Press the Win + R keys on your keyboard to open the Run dialog. Type 'services.msc' and press Enter to launch the Services window.
Scroll down the list to find 'Print Spooler'. Right-click on it and select 'Restart'. If 'Restart' is greyed out, click 'Start' instead.
Launch Adobe Acrobat Pro. Click on the 'Help' tab in the top menu bar and select 'Repair Installation'. Allow the process to run completely.
Once the repair is finished, restart your Windows PC to ensure all registry changes and port mappings take effect.

Manually Reinstall the Adobe PDF Printer
Use this solution if repairing the software fails. Manually adding the printer forces Windows to use the correct Acrobat driver and port.
Create and Export PDFs Natively with WPS Office
Avoid virtual printer installation errors and port configuration bugs altogether. WPS Office features a built-in PDF converter and editor, allowing you to instantly save, edit, and print PDFs natively without relying on external Windows spoolers or third-party PDF printers.
- 1. Open Your Document: Launch WPS Office and open the Word, Excel, or PowerPoint file you wish to convert.
- 2. Export Directly to PDF: Navigate to the 'Menu' at the top left and select 'Export to PDF', or click the dedicated 'Export to PDF' button on the toolbar.
- 3. Customize and Save: Adjust your preferred export settings, such as page range and export quality, then click 'Export' to generate your file instantly.

Frequently Asked Questions
Why did the Adobe PDF printer assign itself to the COM1 port after the update?
This is a known glitch in certain Adobe Acrobat installer versions where the routine fails to correctly detect or map the Documents\*.pdf port. When the target port is missing or blocked, Windows defaults the assignment to the COM1 serial port.
Can I use the Adobe PDF virtual printer after my free trial expires?
No. The Adobe PDF printer is tied to a licensed version of Adobe Acrobat Standard or Pro. Once the trial expires or the software becomes unlicensed, the virtual printer will cease to function correctly.
What should I do if the AdobePDF.inf file is missing from my computer?
If the .inf file is not found in the Acrobat Xtras folder, your software installation is likely corrupted or incomplete. You will need to fully uninstall Acrobat, restart your computer, and run a fresh installer downloaded directly from the official Adobe website.




