Come creare un PDF
Portable Document Format (PDF) is a file format created by Adobe Systems for document exchange. PDF includes text, vector graphics for illustrations and designs, raster graphics for photographs and other types of image, other types of embedded contents and - furthermore - several applications.
A PDF file may be encrypted for security, so that a password is needed to edit its contents.
PDF viewer software - Acrobat Reader - is generally provided free of charge by Adobe, while PDF creator software - Adobe Writer - is not; notwithstanding, there are many software options for creating PDFs.