ViewXFAPDFInIEModeAllowedFileHash

Article
2025-05-09

View XFA-based PDF files using IE Mode for allowed file hash.

Supported versions

On Windows since 132 or later

Description

XFA is a legacy technology that is deprecated by its original creators. It is not an ISO standard and as such, doesn't align with the modern web architecture. Continued use poses potential risks and vulnerabilities. For more information, see - ViewXFAPDFInIEModeAllowedOrigins.

If you enable this policy, you can configure the list of base64 encoded SHA256 file hashes for which XFA PDF files will automatically open in Microsoft Edge using IE Mode.

If you disable or don't configure this policy, XFA PDFs won't be considered for opening via IE mode except the files from file origin mentioned in Policy ViewXFAPDFInIEModeAllowedOrigins

For more information, see - Get-FileHash, Dot Net Convert API.

Supported features

Can be mandatory: Yes
Can be recommended: No
Dynamic Policy Refresh: No - Requires browser restart
Per Profile: Yes
Applies to a profile that is signed in with a Microsoft account: No

Data type

List of strings

Windows information and settings

Group Policy (ADMX) info

GP unique name: ViewXFAPDFInIEModeAllowedFileHash
GP name: View XFA-based PDF files using IE Mode for allowed file hash.
GP path (Mandatory): Administrative Templates/Microsoft Edge/PDF Reader
GP path (Recommended): N/A
GP ADMX file name: MSEdge.admx

Example value

pZGm1Av0IEBKARczz7exkNYsZb8LzaMrV7J32a2fFG4=

nFeL0Q+9HX7WFI3RsmSDFTlUtrbclXH67MTdXDwWuu4=

Registry settings

Path (Mandatory): SOFTWARE\Policies\Microsoft\Edge\ViewXFAPDFInIEModeAllowedFileHash
Path (Recommended): N/A
Value name: 1, 2, 3, ...
Value type: List of REG_SZ

Example registry value

SOFTWARE\Policies\Microsoft\Edge\ViewXFAPDFInIEModeAllowedFileHash\1 =

pZGm1Av0IEBKARczz7exkNYsZb8LzaMrV7J32a2fFG4=

SOFTWARE\Policies\Microsoft\Edge\ViewXFAPDFInIEModeAllowedFileHash\2 =

nFeL0Q+9HX7WFI3RsmSDFTlUtrbclXH67MTdXDwWuu4=

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