Tagged Image File Format - in Document Imaging

In Document Imaging

Adobe holds the copyright on the TIFF specification (aka TIFF 6.0) along with the two supplements that have been published. All of these documents can be found on the Adobe TIFF Resources page. TIFF specification has not been standardized by either ISO or ANSI, but other standards based on TIFF specification were standardized. Various TIFF variations have been used by organizations for numerous years.

TIFF files that strictly use the basic "tag sets" as defined in TIFF 6.0 along with restricting the compression technology to the methods identified in TIFF 6.0 and are adequately tested and verified by multiple sources for all documents being created can be used for storing documents. Commonly seen issues encountered in the content and document management industry associated with the use of TIFF files arise when the structures contain proprietary headers, are not properly documented, and/or contain "wrappers" or other containers around the TIFF datasets, and/or include improper compression technologies, or those compression technologies are not properly implemented.

Variants of the TIFF format can be used within document imaging and content/document management systems using CCITT Group IV 2D compression which supports black-and-white (bitonal, monochrome) images, among other compression technologies that support color. When storage capacity and network bandwidth was a greater issue than commonly seen in today's server environments, high-volume storage scanning, documents were scanned in black and white (not in color or in grayscale) to conserve storage capacity. An average A4 scanning produces 30 kB of data at 200 PPI (pixels per inch of resolution) and 50 kB of data at 300 PPI; 300 PPI is more common than 200 PPI.

The TIFF format can save multi-page documents to a single TIFF file rather than a series of files for each scanned page. Multi-page support and 2D compression of bitonal images led to TIFF's becoming the widely accepted format for facsimiles, especially on Fax Servers.

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