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Problem

OS X Catalina computer printing to an HP printer, starts showing warning dialogs referring to HP printing related files "will damage your computer". The warning may refer to one of the following files.

  • hpPostScriptPDE.plugin

  • hpPostProcessing.bundle

Answer

To resolve the issue, download (and install) the HP Printer Drivers v5.1 for OS X. Once installed, restart your computer.

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