The PDFCOMP_1BITCOMPTYPE enumerated type represents the values used to determine the compression type to be used with 1 bit images. This enumerated type is used by the comp1Bit member of the PDFCOMPRESSION structure.
typedef enum tagPDFCOMP_1BITCOMPTYPE
{
PDFCOMP_1BITCOMPTYPE_ZIP = 0,
PDFCOMP_1BITCOMPTYPE_LZW,
PDFCOMP_1BITCOMPTYPE_CCITT_G3_1D,
PDFCOMP_1BITCOMPTYPE_CCITT_G3_2D,
PDFCOMP_1BITCOMPTYPE_CCITT_G4,
PDFCOMP_1BITCOMPTYPE_JBIG2
} PDFCOMP_1BITCOMPTYPE, *LPPDFCOMP_1BITCOMPTYPE;
[0] Use Zip Compression.
[1] Use LZW Compression.
[2] Use FAX G3_1D Compression.
[3] Use FAX G3_2D Compression.
[4] Use FAX G4 Compression.
[5] Use JBIG2 Compression.