Adobe programs: If you plan to edit a PDF file, Adobe advertises its Acrobat Pro software as an advanced PDF editing tool.This program can open PDF files alongside other common e-book formats and lets you annotate and search the files. Microsoft Reader: Microsoft offers its free Reader app through its app store.Just drag and drop the PDF into the browser. Web browsers: If you don't need to make any changes to the PDF file, popular web browsers such as Microsoft Edge and Google Chrome display PDF files hosted online and saved on your computer.