This document describes PDF/raster, a strict subset of the PDF file format designed for storing, transporting and exchanging multi-page raster-image documents.
This document describes PDF/Raster, a strict subset of the PDF file format, for storing, transporting and exchanging multi-page raster-image documents, especially scanned documents.
As a subset of PDF, PDF/Raster takes advantage of the widespread support for viewing, printing and processing PDF files. As a narrowly restricted subset of PDF, it is much simpler to generate and interpret than conventional PDF files, allowing it to replace the TIFF and JPEG file formats for capture and delivery of scanner output.
PDF/Raster provides the portability of PDF while offering the core functionality of TIFF. Bitonal, grayscale and RGB images are supported. Compression options include JPEG, lossless CCITT Group 4 Fax and uncompressed.
PDF/Raster was created in a collaboration between the TWAIN Working Group, which originated the PDF/Raster concept, and the PDF Association, which provided PDF technology expertise and perspective as well as means of communicating with the PDF software industry to ensure a diverse range of relevant viewpoints was represented.