Adobe (ADBE) - Get Report was down 6% in preopen Instinet trading after the document-sharing software maker said third-quarter revenue was below analysts' estimates and down from the same period last year.

Adobe said pro forma earnings for its fiscal third quarter fell to 28 cents a share, in line with analysts' estimates and down from 29 cents in the year-earlier period.

Revenue fell to $292.1 million from $328.9 million in the quarter a year earlier. Analysts were expecting revenue of $319.12 million, according to Thomson Financial/First Call.