PDF EDITOR ,PDF BOOK READER

downloadable software for creating, viewing, editing, modifying pdf documents, and reading e-books; downloadable software for converting pdf documents; downloadable software for annotating and commenting on pdf documents; downloadable software for signing pdf documents; downloadable software for managing, sharing, and opening pdf documents across multiple devices; downloadable software for scanning text and images in pdf documents; downloadable software for adding, manipulating, and editing images in pdf documents