What is the primary purpose of compression in digital media?

• A. To increase image clarity.
• B. To convert formats.
• C. To add encryption.
• D. To reduce file size for easier loading and sharing.

Answer: (D)

Compression reduces the amount of data needed to represent a media file. Its main purpose is to shrink file size so the file loads faster, takes up less storage, and can be shared more easily. There are lossless methods that keep all information while trimming size, and lossy methods that discard some data to achieve even smaller files, often with little noticeable impact on quality. This helps websites load quicker, saves bandwidth, and makes streaming more efficient. Increasing image clarity isn’t the goal of compression; in fact, lossy compression can reduce quality. Converting formats is a separate step that may involve re-encoding, but isn’t the primary purpose of compression. Encryption is about securing data, not reducing size.