Adobe CEO Shantanu Narayen at a conference last month in Los Angeles. - Mark Von Holden/AP Content Services for Adobe Adobe struck a $1.9 billion deal to acquire Semrush, a software platform that helps businesses run better search-engine optimization as reliance on artificial intelligence increases. The details A deal was announced Wednesday, confirming an earlier report by The Wall Street Journal. Most Read from The Wall Street Journal Adobe said it will pay$12 a share in all cash for Semrush, which ...