Acr.XamForms.SignaturePad did't support for Windows8.1,Is thr any possible work around for achive ?

Hi ,
i was developed IOS app using Xamarin.Forms ,now i starting windows 8.1 APP i'm trying reuse my PCL but i can't achieve it ,
i was developed signaturepad functionality using Acr.XamForms.SignaturePad but it's not supporting for windows 8.1 ,is there any possible work around ,kindly let me know