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Microsoft: August updates break printing, PDF export in WPF apps
August 24, 2026 · BleepingComputer · Severity: LOW
The latest .NET Framework updates from Microsoft’s August Patch Tuesday cause printing and PDF export functionality to fail in WPF applications. Users relying on Windows Presentation Foundation for document workflows are impacted. Microsoft has confirmed the problem, though a permanent fix is still pending.
Key Takeaways
- August 2026 .NET Framework updates break printing and PDF export in WPF applications.
- The issue affects applications using Windows Presentation Foundation for document generation and output.
- Microsoft has acknowledged the bug but no official fix or workaround has been released yet.