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FileFormatUtil incorrect format

Hello, I have a problem with Aspose.Words
FileFormatUtil. When I try to process returned by EchoSign service document FileFormatUtil
can’t detect file format correctly. It detects it as Text but it is PDF. In attachments “clean” PDF and “returned back” from EchoSign service (signed) PDF document, both are PDF, all
programs open it normally. DocuSign documents are OK.

Hi RusWizards,

Thanks for your inquiry. Please note that with FileFormatInfo, you can detect only file formats listed in the following link:

Please read following documentation links for your kind reference.

I am moving this thread to Aspose.Total forum. My colleagues from Aspose.PDF team will reply you shortly about the detection of PDF file format.