Concept:PDF stands for Portable Document Format, a file format developed by Adobe to present documents with a fixed layout across different devices and systems.
Explanation:The acronym PDF expands to Portable Document Format, not Printable, Permanent, or Personal.
This format preserves fonts, images, and layout exactly as intended, making documents print-ready and easy to share.
PDF files can include text, hyperlinks, and even 3D artwork.
They support password protection and encryption, and most PDF readers are freely available.
Answer:C. Portable Document Format