You’ve identified a real gap. Printers are already a supported exit point in CAP policies, but file type filtering is explicitly not applied to print events — the current architecture keeps the two features separate, which is exactly why the regex workaround was suggested and why it falls short.
The regex approach is not an ideal substitute: it matches on filename patterns globally across all exit points rather than specifically at print time, plus it can’t perform true file type detection by content the way the native file type filter does.
We’ve noted this as a feature gap — enabling file type filtering specifically for the Printers exit point — and will consider it as part of future improvements to CAP policy configuration.
If the goal is to just get visibility when specific file types are printed regardless of the content, you can enable the File Tracing feature. This will log every print job under Reports and Analysis → File Tracing, then you can filter by file type. Here’s an example of how these events look like:
