
Hi @Boopathi S
If you see this message in Edge when opening PDF file, it means that Edge PDF reader doesn't support this kind of PDF file. You can see the Constraints of Edge PDF reader:
- XML Forms Architecture (XFA), is a legacy format of forms that isn't supported in Microsoft Edge.
- Documentation related to Accessibility scenarios that currently aren't supported can be found on the Microsoft Accessibility Conformance Reports blog.
In this situation, you can only open the PDF file in Adobe Acrobat Reader.
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Regards,
Yu Zhou