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Button Submit flag is not set to PDF when PDF file is reader-extended


I noticed that the Submit flag of a button is being set to 20 instead of PDF when the PDF file is reader-extended. This causes the file to have a content type of “application/x-www-form-urlencoded” instead of “application/pdf”, which is the type needed to be able to save the whole form instead of just the filled-in fields. When using a PDF file that is not reader-extended, it works fine but the problem is, the user can’t sign the form (the signature popup is not being displayed).

Any advice?


Any update on a resolution for this?

I’m experiencing the same problem…

Hello Vincent,

Thanks for using our products.

Can you please share some code snippet/sample project which can help us replicating this issue in our environment. We are sorry for your inconvenience.