PDF file "damaged" on Extract

[ethanmgomes]

Hello,

I have created an extensibility rule to extract values from the FileBytes column in the XFW_UTM_SupportDoc table, then convert the FileBytes to a file and save in the file share. See below for code snippet:

'Execute query and save attachment to file share folder
Using dt As DataTable = BRAPi.Database.ExecuteSql(dbConnApp, fileBytesQuery, True)
	If Not dt Is Nothing Then
		For Each dr As DataRow In dt.Rows
									   
			'Process rows
			Dim fileBytesValue As Byte() = dr("FileBytes")  
				
			Dim fileNameValue = dr("FileName")
			Dim taskNameValue = dr("TaskName")

			Dim fullFileName As String = fileNameValue
				
			'Create file in file share, and store folder name
			Dim fileInfo As XFFileInfo = New XFFileInfo(FileSystemLocation.FileShare, fullFileName.toString)
			fileInfo.FolderFullName = "Applications/" & applicationName & "/Batch/Harvest/TaskManager_Exports"

			'Convert fileBytes to file, and save in folder path
			Dim fileFile As XFFile = New XFFile(fileInfo, "", fileBytesValue)
			BRApi.FileSystem.InsertOrUpdateFile(si, fileFile)
				
		Next
	End If
End Using

This code runs successfully for .xlsx, .csv, and .docx files. It also executes without error for .pdf files, but I am met with this error after I download the .pdf file and open:

Any thoughts on why this is happing specifically for .pdf files?