Concur with Jimi that the most suitable antonym for "free of demand" is "for sale." But, "acquired" or "priced" could operate as the other of "free of charge." This e book is free of demand. This e book is priced. That dessert was free of cost. That dessert was ordered. https://wiki-articles-backlinks89875.wizzardsblog.com/36659993/the-greatest-guide-to-backlinks-with-high-da