A PDF reader is software that lets you open, view, and interact with your PDF (Portable Document Format) files. Basic PDF readers often offer functionalities like zooming in and out, page rotation, and text search. More advanced PDF readers can also provide tools to edit, annotate, bookmark, search within PDFs, and switch between different reading themes.
With a reliable PDF reader, book lovers can transform their iPhone or iPad into a powerful e-reader, allowing them to enjoy their favorite books in a digital format with functionality even better than any e-reader.