On the Default Compressions Tab users can set up the default compression methods for TIFF and PDF file formats.
Tiff file format default compression modes
Use the image original compression if available – If this option is enabled, it detects the original compression of the document, and automatically selects the detected compression upon saving if it’s possible, otherwise it uses the defined default compression. (For example, if a color (24bit) image with JPEG compression is converted into monochrome (1bit) image, the TIFF Viewer cannot save the image into JPEG compression
Default compression mode for Monochrome (1bit) images - defines the default compression method for Monochrome (1bit) documents:
No compression
Pack Bits
LZW compression
CCIT G3 1D no EOL
CCIT G3 1D EOL
CCIT G3 2D
CCIT G4 (default)
Default compression mode for Grayscale (8bit) images - defines the default compression method for grayscale (8bit) documents:
No compression
Pack Bits
LZW compression (default)
LZW Differential compression
Default compression mode for Color (24bit) images - defines the default compression method for color (24bit) documents:
No compression
Pack Bits
LZW compression (default)
LZW Differential compression
JPEG compression
PDF file format default compression modes
Use the image original compression if available – If this option is enabled, it detects the original compression of the document, and automatically select the detected compression upon saving if it’s possible, otherwise uses the defined default compression. (for example, if a color (24bit) image with JPEG compression is converted into monochrome (1bit) image, the TIFF Viewer cannot save the image into JPEG compression. In this case, TIFF Viewer will use the defined default compression method.)
Default compression mode for Monochrome (1bit) images - defines the default compression method for Monochrome (1bit) documents:
No compression
CCIT FAX compression
FLAT compression (default)
Default compression mode for Grayscale (8bit) images - defines the default compression method for grayscale (8bit) documents:
No compression
Run-Length
FLAT compression (default)
Default compression mode for Color (24bit) images - defines the default compression method for color (24bit) documents:
No compression
JPEG compression
FLAT compression (default)
JPEG Quality - defines the quality of the JPEG compression. [0-100]