The compression methods supported by the Tiff/GeoTIFF format are as follows:

• NONE: No compression.
• LZW: Lossy compression, which can compress not only repetitive data but also non-repetitive data. Using this compression method may cause white spots in the result data.
• DEFLATE: Lossless compression widely used in ZIP file compression and PNG image compression.
• JPEG: Lossy compression, with a compression ratio that can reach 1/20 to 1/40 while ensuring no visual difference, it has a high compression level and is suitable for image data used as background maps. Using this compression method may cause white spots in the result data.