Trying to compress a TIFF file to CCITT4 FAX4 format. All settings set in Save As, Advanced . Also tried setting them in Settings , User Settings.
The resulting file in Windows detail shows CCITT T.6.
CCITT Group4 (G4FAX in our program) and CCITT T.6 are the same compression.
CCITT Group 4 (G4FAX in our program)
CCITT Group 4 is a widely-used lossless compression algorithm for bitonal images. It is also known as T6, T.6, Fax4, G4, Group 4, or ITU-T Fax Group 4.
CCITT Group 3 (G3FAX in our program)
CCITT Group 3 is a lossless compressed data format for bi-level images. It is also known as T4, T.4, Fax3, Group 3, G3, or ITU-T Fax Group 3.
It comes in two main varieties: so-called 1-dimensional and 2-dimensional (though both are used on 2-dimensional images). The 1-dimensional variety uses Modified Huffman (MH) compression, and the 2-dimensional variety uses Modified READ (MR) compression.
Available programs:
- Advanced TIFF Editor Plus (free download, home page);
- Advanced TIFF Editor (free download, home page);
