Not Able to Print Report to PDF via Ajax client - Printer Unknown - Not Found

[Sonja_Bauernfeind]

Generating PDF reports in Ajax may fail with the following errors:

Printer Unknown Error

PDF Printer Not Found

Printing using QlikView IE Plugin or QlikView Desktop works fine.

Environment:

QlikView 

This may be related to the Print Spooler service not being started in Windows, preventing the PDF Exchange printer from being registered during installation.

Resolution:

To fix this issue do the following:

1. Go to Windows Services
2. Locate the Print Spooler service
3. Make sure Startup type is set to: Automatic and the service is started
   
   
   
   
4. Reinstall PDF Exchange. See Install or Reinstall PDF-Xchange Printer on QlikView Server.
5. If prompted for a Registration code, leave the default as "Trial".
6. Verify PDF-XChange 3.0 is added in Control Panel - Hardware and Sound - Devices and Printers
7. Verify successful installation by printing a report using Ajax.

Turning off the Print Spooler service will generate similar errors. This service must be running for PDF XChange to work.

[dsmithqlik]

Please be aware of recent vulnerability with the Windows Print Spooler and recommended fix:
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-34527