I suspect that the form that you opened is already ' to fill' so the fill tool & sign just offers you the possibility to sign the PDF and all filling out forms is managed the the Acrobat/Reader native app. What version of Acrobat or Reader are you using? When you open the form are the fields highlighted and 'complete' without clicking the 'Fill & Sign' tool to open the bar fill tools & sign? Why are my tool fill and sign not appearing is not on the bar and how do I solve this problem.
