PDF files have the option to let you share and comment on documents in a wide range of applications. Adobe Acrobat Reader and other free PDF programs offer a subset of the capabilities of the paid ...

Adding audio comments to Acrobat is available for both the free version (Acrobat DC) and the paid version (Acrobat Pro). Adding audio comments to Acrobat can be done by directly recording the audio in ...

Try Foxit Reader 4.3, which allows you to add text to any PDF. After installing the program, simply open your PDF in Foxit instead of Adobe Reader, then click Comments, Typewriter Tools, Typewriter ...