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File types (Compression (Lossy Compression (Lossy compression removes some…
File types
Compression
Compression is usually good but there can be a trade off between compression rates and quality. Web developers need to ensure they use compressed file formats that still keep a quality that is acceptable to end users.
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Lossless Compression
Lossless compression keeps all of the original data. However, there is usually a lower compression ratio which means file sizes tend to be larger than files that make use of lossy compression.
Image files
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GIF
Lossless compression, supports transparency and supports animation
Audio files
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MP3
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quality depends on level of lossy compression (usually difficult for humans to notice the difference)
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