This is a PDF app for Android and the best viewer for viewing PDF. PDF Reader📖 Full screen immersive reading View multiple file types📚 Support viewing a variety of office documents: pdf, word, excel, ppt, quickly view files Other Features📝 Highlight the key points Add strikethrough Add underline Brush marking and signature Get permission to read system files Allows open access to system files, making it easier to view PDF files on your system. Read PDF books and PDF notes on the go with this fast PDF reader.