INTERNATIONAL TELECOMMUNICATION UNION ITU-T RECOMMENDATION SUMMARY Rec. No. : T.503 Title : A document application profile for the interchange of group 4 facsimile documents Study Group : VIII - Terminals for Telematics Services Version : Revised Date of adoption : 1991 Notes : Recommendation T.503 defines a document application profile conforming to the T.410 series of Recommendations. Its purpose is to specify an interchange format suitable for the interchange of Group 4 facsimile documents that contain only raster graphics. Documents are interchanged in a formatted form, which enables the recipient to display or print the document as intended by the originator. Recommendation T.503, together with designated parts of T.563, defines a document application profile that may be used by any telematic service. This document application profile is designed to be independent of the means used to create or to interchange the encoded documents. The features which can be interchanged used this document application profile fall into the following categories: a) Page format features - these concern how the layout of each page of a document will appear when reproduced; b) Raster-graphics layout and imaging features - these concern how the document content will appear within the pages of the reproduced document; c) Raster-graphics coding - these concern the raster graphics representations and control functions that make up the document raster-graphics content. It is assumed that, when negotiation is performed by the service using this document application profile, all non-basic features are subject to negotiation. To order the complete text of this Recommendation, please use the Order Form for ITU-T Recommendations. An electronic version of this form is available on ITUDOC (Winword 2.0: UPI=ITU-5265; ASCII: UPI=ITU-2488).