Enum image
CompressionCode
Namespace: datalogics_interface
Description
Compression values for generating graphics files from PDF pages. A compression value must be provided for JPG or GIF images.
Values
- Default = 0
Use the default compression for the output image type.
- None = 1
No image compression. Valid for BMP, PNG, and TIFF outputs only.
- Flate = 2
Deflate algorithm (PNG only). Lossless, widely used in zip files and PDF.
- LZW = 3
Lempel-Ziv-Welch. Valid for GIF and TIFF; lossless, larger files retain quality.
- G3 = 4
CCITT Group 3 compression. TIFF only, requires gray color model. Lossless, efficient on B&W with whitespace.
- G4 = 5
CCITT Group 4 compression. TIFF only, requires gray color model. Lossless, based on G3.
- DCT = 6
Discrete Cosine Transform. Lossy, JPEG only. Best for continuous-tone images such as photographs.