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THPDFImageCompressionType |
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Determines image compression algorithms.
type THPDFImageCompressionType = (icFlate, icJpeg, icCCITT31, icCCITT32, icCCITT42, icJBIG2, icAutoMono);
Value Meaning icFlate Flate compression algorithm icJpeg JPEG compression algorithm icCCITT31 CCITT Group 3 one-dimensional compression icCCITT32 CCITT Group 3 two-dimensional compression icCCITT42 CCITT Group 4 compression icJBIG2 JBIG2 compression for 1-bit image data in PDF 1.4 or later icAutoMono Automatic monochrome selector for 1-bit bitmap content. HotPDF chooses Flate for small images, CCITT Group 4 for medium images or PDF/A constrained output, and JBIG2 for large eligible images
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