File Formats: TIFF CCITT and Other FAX Formats

LEADTOOLS supports reading and writing of the following 1-bit formats that are commonly used in FAX transmissions:

TIFF

Regions are saved automatically inside TIFF files. For more information, refer to Saving a Region. Note, however, that the ability to save a region inside a TIFF file must be unlocked. This requires a Document Imaging or Medical Imaging toolkit.

For more information refer to Tagged Image File Format (tiff).

CALS

This format does not support regions.

The file constants associated with this file format are:

Constant

Read Support

Write Support

Description

Cals

1 BPP

1 BPP

CALS Raster file.

Cals2

1 BPP

1 BPP

CALS CCITT G4 compressed.

Cals3

1 BPP

1 BPP

CALS Fax Group 4 compressed.

Cals4

1 BPP

1 BPP

CALS CCITT G4 Tiled.

Required DLL: Leadtools.Codecs.Cal.Dll. For a listing of the exact DLLs needed, based on the toolkit version, refer to Files To Be Included With Your Application .

Platforms: .NET 4, .NET Standard

IOCA

For more information refer to Image Object Content Architecture Format (ioca/modca).

WinFax

The file constants associated with this file format are:

Constant Read Support Write Support Description
TifxJbig 1 BPP 1 BPP TIFF-FX format. JBIG compressed.
(Document/Medical toolkits only)
TifxJbigT43 3 BPP 3 BPP TIFF-FX format. JBIG compressed.
(Document/Medical toolkits only)
TifxJbigT43ItuLab 8 BPP 8 BPP TIFF-FX format. JBIG compressed.
(Document/Medical toolkits only)
TifxFaxG4 1 BPP 1 BPP TIFF-FX format, compressed using CCITT group 4.
TifxFaxG31D 1 BPP 1 BPP TIFF-FX format, compressed using CCITT group 3, 1 dimension.
TifxFaxG32D 1 BPP 1 BPP TIFF-FX format, compressed using CCITT group 3, 2 dimensions.
TifxJpeg 8 BPP (Grayscale), 24 BPP 8 BPP (Grayscale), 24 BPP TIFF-FX format. JPEG compressed.

Required DLL: Leadtools.Codecs.Wfx.Dll. For a listing of the exact DLLs needed, based on the toolkit version, refer to Files To Be Included With Your Application .

Platforms: .NET 4, .NET Standard

Raw FAX

The file constants associated with this file format are:

Constant Read Support Write Support Description
WfxG31Dim 1 BPP 1 BPP Winfax, compressed using CCITT group 3, 1 dimension.
WfxG4 1 BPP 1 BPP Winfax, compressed using CCITT group 4.

Required DLL: Leadtools.Codecs.Fax.Dll. For a listing of the exact DLLs needed, based on the toolkit version, refer to Files To Be Included With Your Application .

Platforms: .NET 4, .NET Standard, Android, iOS/macOS

MicrosoftFax

AWD. This is a Microsoft FAX format.

The file constants associated with this file format are:

Constant Read Support Write Support Description
FaxG31Dim 1 BPP 1 BPP Raw FAX, compressed using CCITT group 3, 1 dimension.
FaxG31DimNoEol 1 BPP 1 BPP Raw FAX, compressed using CCITT group 3,1 dimension.with no EOL.
FaxG32Dim 1 BPP 1 BPP Raw FAX, compressed using CCITT group 3, 2 dimensions.
FaxG4 1 BPP 1 BPP Raw FAX, compressed using CCITT group 4.

Required DLL: Leadtools.Codecs.Awd.Dll. For a listing of the exact DLLs needed, based on the toolkit version, refer to Files To Be Included With Your Application .

Platforms: .NET 4, .NET Standard

NOTE: This format does not support LEAD's redirected IO feature, therefore it cannot be used with the overloads of Load that take an inputstream parameter or FeedLoad.

LaserView LaserData

LaserView LaserData. The LaserData file format is a legacy Group 4 compressed FAX format.

The file constants associated with this file format are:

Constant Read Support Write Support Description
LaserData 1 BPP None LaserData CCITT G4.

Required DLL: Leadtools.Codecs.Fax.Dll. For a listing of the exact DLLs needed, based on the toolkit version, refer to Files To Be Included With Your Application .

Platforms: .NET 4, .NET Standard

TIFF-FX

These are Internet Fax files developed and used by Xerox. This format supports several types of compression, which allows the user or developer to use the compression that best suits his or her needs. In addition, this file format can be extended as the need arises. The following modes are supported:

Minimal Black and White: This mode uses binary MH compression (T.4).

Extended Black and White: This mode uses binary MH, MR and MMR compression (T.4 and T.6).

Lossless JBIG Black and White: This mode uses JBIG compression (T.85, T.82). (Document/Medical toolkits only).

Lossy Color and Grayscale: This mode uses JPEG compression (T.42, T.81).

Lossless Color and Grayscale: This mode uses JBIG compression (T.43, T.82). (Document/Medical toolkits only).

The default extensions used by this format is: TIFX, TIFF.

This file format does support multipage files.

The file constants associated with this file format are:

Constant Read Support Write Support Description
TifxJbig 1 BPP 1 BPP TIFF-FX format. JBIG compressed. (Document/Medical toolkits only)
TifxJbigT43 3 BPP 3 BPP TIFF-FX format. JBIG compressed. (Document/Medical toolkits only)
TifxJbigT43ItuLab 8 BPP 8 BPP TIFF-FX format. JBIG compressed. (Document/Medical toolkits only)
TifxFaxG4 1 BPP 1 BPP TIFF-FX format, compressed using CCITT group 4.
TifxFaxG31D 1 BPP 1 BPP TIFF-FX format, compressed using CCITT group 3, 1 dimension.
TifxFaxG32D 1 BPP 1 BPP TIFF-FX format, compressed using CCITT group 3, 2 dimensions.
TifxJpeg 8 BPP (Grayscale), 24 BPP 8 BPP (Grayscale), 24 BPP TIFF-FX format. JPEG compressed.

Required DLL: Leadtools.Codecs.Tfx.Dll. For a listing of the exact DLLs needed, based on the toolkit version, refer to Files To Be Included With Your Application.

Related Formats: TIFF - Tagged Image File Format.

Platforms: .NET 4, .NET Standard

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