Multiple choice

What does the file extension .pdf stand for? 

  1. Portable Device Format

  2. Portable Disc File

  3. Portable Device and File

  4. Portable Document Format
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The file extension .pdf stands for Portable Document Format. Developed by Adobe in 1992, it is designed to present documents consistently across different operating systems, software, and hardware.

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