问题
I am working on PDF annotation app i added File Attachment Annotation in PDF file but facing one issue how to set custom icon of File Attachment in Adobe Reader it provide default 4 types of icon in this image but my requirement is to set custom icon so it possible ?? please give me suggestion
来源：https://stackoverflow.com/questions/18699046/possible-to-set-custom-icon-of-fileattachment-annotation-in-adobe-reader