Specifies compression scheme used when saving TIFF images.
public property Compression: LongInt read FCompression write FCompression;
Supported values are 0 (Uncompressed), 1 (LZW), 2 (PackBits RLE), 3 (Deflate - ZLib), 4 (JPEG). Default is 1 (LZW). Note that not all images can be stored with JPEG compression - these images will be saved with default compression if JPEG is set.