Printer Missing

Try one of the following to reinstate your missing Doc.It 4 PDF Printer 

- (Quick) Reset the printer using the Doc.It Startup Utility found in the system tray. Right Click yellow icon in system tray > click Doc.It Startup Utility > Reset Printer

- Try running the following to re-install the PDF Printer:
C:\Program Files (x86)\Doc.It Suite 4\Doc.It 4\Third Party\PDFX5SA_sm.exe  - Accept all defaults   - A restart can be postponed if needed