Data management is a crucial aspect in the Internet of Things (IoTs) on cloud. Big data is about the processing and analysis of large data repositories on cloud computing. Big document summarization method is an important technique for data management of IoT. Traditional document summarization methods are restricted to summarize suitable information from the exploding IoT big data on cloud. This paper proposes a big data (i.e., documents and texts) summarization method using the extracted semantic feature which it is extracted by distributed parallel processing of NMF based cloud technique of Hadoop.