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Stephan_Reiners
Level 2
Sep 1, 2026 11:34 AM UTC

Blank PDF preview following Microsoft Update KB5121003

I made the following observation:
In the Designer (FormDesigner.exe) for interactive forms, the preview window remained blank.
Although the AcroRd32.exe process was launched in the background and the temporary PDF was created in %TEMP%, it was not displayed.
A quick analysis revealed that the Windows Update KB5121003 had been installed the day before.
Once it had been uninstalled, the problem was resolved.
Is this behaviour known?

    1 reply

    Adobe Employee
    Sep 21, 2026 9:46 AM UTC

    Yes , this behavior is known .

    You can upgrade to Acrobat version >=26.001.21367  to get the fix . Refer https://www.adobe.com/devnet-docs/acrobatetk/tools/ReleaseNotesDC/continuous/dccontinuousmarch2026qfe.html#dccontinuousmarchtwentytwentysixqfe

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