Cannot open / sign NCOER PDF-F on Mac
macos
Symptoms
NCOER or other DoD PDF-F documents either fail to open or refuse to sign on Mac.
Likely cause
The Mac's built-in Preview does not implement CAC signing for PDF-F.
Fix
1. Install Adobe Acrobat Reader for Mac.
2. Set Adobe Reader as the default PDF handler.
3. Save the PDF-F locally first, then open with Adobe Reader.
Sourced from militarycac.com. Rewritten for clarity.
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