Tag Image File Format (TIFF) - image/tiff MIME Sub-type Registration
RFC 3302

Document Type RFC - Draft Standard (September 2002; No errata)
Obsoletes RFC 2302
Last updated 2015-10-14
Stream IETF
Formats plain text pdf html bibtex
Stream WG state (None)
Document shepherd No shepherd assigned
This information refers to IESG processing after the RFC was initially published:
IESG IESG state RFC 3302 (Draft Standard)
Consensus Boilerplate Unknown
Telechat date
Responsible AD Scott Hollenbeck
Send notices to (None)
Network Working Group                                         G. Parsons
Request for Comments: 3302                               Nortel Networks
Obsoletes: 2302                                              J. Rafferty
Category: Standards Track                          Brooktrout Technology
                                                          September 2002

               Tag Image File Format (TIFF) - image/tiff
                      MIME Sub-type Registration

Status of this Memo

   This document specifies an Internet standards track protocol for the
   Internet community, and requests discussion and suggestions for
   improvements.  Please refer to the current edition of the "Internet
   Official Protocol Standards" (STD 1) for the standardization state
   and status of this protocol.  Distribution of this memo is unlimited.

Copyright Notice

   Copyright (C) The Internet Society (2002).  All Rights Reserved.

Abstract

   This document describes the registration of the MIME sub-type
   image/tiff.  This document refines an earlier sub-type registration
   in RFC 1528.

   This document obsoletes RFC 2302.

1.  Conventions used in this document

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
   document are to be interpreted as described in RFC 2119 [REQ].

2.  Overview

   This document describes the registration of the MIME sub-type
   image/tiff.  The baseline encoding of TIFF (Tag Image File Format) is
   defined by [TIFF].

3.  Internet Fax Working Group

   This document is a product of the IETF Internet Fax Working Group.
   All comments on this document should be forwarded to the email
   distribution list at <ietf-fax@imc.org>.

Parsons & Rafferty          Standards Track                     [Page 1]
RFC 3302                       image/tiff                 September 2002

4.  TIFF Definition

   TIFF (Tag Image File Format) Revision 6.0 is defined in detail by
   Adobe in [TIFF].  The documentation can be obtained from Adobe at:

      Adobe Developers Association
      Adobe Systems Incorporated
      345 Park Avenue
      San Jose, CA 95110-2704

      Phone: +1-408-536-6000
      Fax:   +1-408-537-6000

   A copy of this specification can also be found in:
   http://partners.adobe.com/asn/developer/PDFS/TN/TIFF6.pdf

   While a brief scope and feature description is provided in this
   section as background information, the reader is directed to the
   original TIFF specification [TIFF] to obtain complete feature and
   technical details.

4.1  TIFF Scope

   TIFF describes image data that typically comes from scanners, frame
   grabbers, and paint- and photo-retouching programs.  TIFF is not a
   printer language or page description language.  The purpose of TIFF
   is to describe and store raster image data.  A primary goal of TIFF
   is to provide a rich environment within which applications can
   exchange image data.  This richness is required to take advantage of
   the varying capabilities of scanners and other imaging devices.
   Though TIFF is a rich format, it can easily be used for simple
   scanners and applications as well because the number of required
   fields is small.

4.2  TIFF Features

   Some of the features of TIFF (from [TIFF]) are:

      -  TIFF is capable of describing bilevel, grayscale, palette-
         color, and full-color image data in several color spaces.

      -  TIFF includes a number of compression schemes that allow
         developers to choose the best space or time tradeoff for their
         applications.

      -  TIFF is designed to be extensible and to evolve gracefully as
         new needs arise.

Parsons & Rafferty          Standards Track                     [Page 2]
RFC 3302                       image/tiff                 September 2002

      -  TIFF allows the inclusion of an unlimited amount of private or
         special-purpose information.

5.  MIME Definition

5.1  image/tiff

   The image/tiff content-type was previously defined in RFC 1528 as
   containing TIFF 6.0 encoded image data, with specific reference made
   to a subset known as TIFF Class F.  This document redefines the
   original image/tiff definition to refer to TIFF 6.0 [TIFF] encoded
   image data, consistent with existing practice for TIFF aware Internet
   applications.  This definition is further enhanced by introducing the
   new "application parameter" (section 6.2) to enable identification of
   a specific subset of TIFF and TIFF extensions for the encoded image
   data.

5.2  Application parameter

   There are cases where it may be useful to identify the application
   applicable to the content of an image/tiff body.  Typically, this
   would be used to assist the recipient in dispatching a suitable
   rendering package to handle the display or processing of the image
   file.  As a result, an optional "application" parameter is defined
   for image/tiff to identify a particular application's subset of TIFF
Show full document text