Fix Adobe Acrobat Spool Error When Printing PDFs on macOS
Question details
The user is unable to print PDF files using Adobe Acrobat DC on a Mac due to a spool directory error, despite printing working perfectly in native applications like Preview.
- Product
- Adobe Acrobat DC
- Device & OS
- macOS 10.14.6
- Scenario
- Attempting to print a PDF document to a previously working network or local printer.
- Observed behavior
- Acrobat displays a 'Can't open /private/var/spool/...' error message and fails to process the print job, even though the printer functions normally outside of Acrobat.
Before troubleshooting Acrobat, check if your Mac has any pending operating system updates and ensure your printer is turned on, connected to the correct network, and has no physical errors.
Remove and Re-add the Printer in macOS
Resetting the printer connection can clear corrupted spooler configurations and outdated driver paths that cause Acrobat's print engine to fail.
macOS maintains specific directory permissions for print queues. If these directories become corrupted or out of sync with Adobe Acrobat, re-adding the printer forces macOS to generate a fresh spool folder.
Click the Apple menu in the top-left corner of your screen, select 'System Preferences', and then click on 'Printers & Scanners'.
Select your printer from the list on the left side of the window, then click the minus ('-') button at the bottom of the list to remove it.
Restart your MacBook to clear any temporary system states or locked files in the print spool directory.
Go back to 'Printers & Scanners', click the plus ('+') button, and select your printer from the list to re-add it using the latest compatible driver.
Update or Clean Reinstall Adobe Acrobat DC
A corrupted Adobe Acrobat installation or an outdated application version can trigger localized spool directory permission errors.
Print the PDF as an Image (Workaround)
Forcing Acrobat to send the document as a rasterized image bypasses complex vector rendering errors in the macOS spool system.
Print PDFs on Mac Smoothly with WPS Office
If Adobe Acrobat continues to block your workflow with complex spool errors, WPS Office provides a reliable, lightweight alternative to open, edit, and print your PDF documents seamlessly on macOS.
- 1. Download WPS Office: Download and install WPS Office for Mac from the official website.
- 2. Open Your PDF: Launch WPS Office, select the 'PDF' tab, and open the document you wish to print.
- 3. Print the Document: Click the 'Print' icon on the toolbar or press 'Command+P', select your system printer, and click 'Print' for a flawless output.
Frequently Asked Questions
Why does the spool error only happen in Adobe Acrobat and not Apple Preview?
Adobe Acrobat utilizes its own complex print rendering engine instead of relying entirely on the native macOS print subsystem. If Acrobat's software permissions to the macOS `/private/var/spool/` directory become restricted or misconfigured, print jobs will fail. Native applications like Preview have built-in, unhindered system privileges to handle this process natively.
How do I completely clear the print queue on my Mac?
Open 'System Preferences' > 'Printers & Scanners', right-click (or Control-click) anywhere inside the empty space of the printer list, and select 'Reset printing system...'. This action will clear all stalled print queues, remove all configured printers, and reset the macOS printing subsystem to factory defaults.
Does resetting the macOS printing system delete my installed printer drivers?
No. Resetting the printing system strictly removes the active printer configurations and pending print jobs, but the actual printer drivers themselves remain installed on your Mac's hard drive. You can easily re-add your devices without needing to re-download the drivers from the manufacturer.
