Which extension identifies a PDF document?

Which extension identifies a PDF document?

• A. .txt
• B. .docx
• C. .pdf
• D. .html

Answer: (C)

The correct answer identifies a PDF document by the extension ".pdf". This format, which stands for Portable Document Format, was developed by Adobe to allow for the sharing and viewing of documents regardless of the software, hardware, or operating system used to create them. PDF files are widely used for creating and distributing read-only documents that retain the original formatting, making them ideal for reports, forms, and sharing of digital publications. The other extensions correspond to different types of files, reflecting various formats used for specific purposes. The ".txt" extension indicates a text file, which typically contains unformatted plain text. The ".docx" extension is associated with Microsoft Word documents, which can contain formatted text and multimedia elements. The ".html" extension is used for Hypertext Markup Language files, which are the standard for creating web pages. Thus, each extension points to a distinct category of file, highlighting the unique role that the PDF format plays in document sharing and preservation.

The correct answer identifies a PDF document by the extension ".pdf". This format, which stands for Portable Document Format, was developed by Adobe to allow for the sharing and viewing of documents regardless of the software, hardware, or operating system used to create them. PDF files are widely used for creating and distributing read-only documents that retain the original formatting, making them ideal for reports, forms, and sharing of digital publications.

The other extensions correspond to different types of files, reflecting various formats used for specific purposes. The ".txt" extension indicates a text file, which typically contains unformatted plain text. The ".docx" extension is associated with Microsoft Word documents, which can contain formatted text and multimedia elements. The ".html" extension is used for Hypertext Markup Language files, which are the standard for creating web pages. Thus, each extension points to a distinct category of file, highlighting the unique role that the PDF format plays in document sharing and preservation.