Contains descriptive information about the document.
Choose File - Properties - Description tab.
Enter a title for the document.
Enter a subject for the document. You can use a subject to group documents with similar contents.
Enter the words that you want to use to index the content of your document. Keywords must be separated by commas. A keyword can contain white space characters or semicolons.
Enter comments to help identify the document.
Title, Subject and Keywords are exported to PDF files as PDF Document Properties. Entered values are exported and will appear in the corresponding fields in the PDF Document Properties Description.