嵌入式系统中PDF格式的高效压缩算法  

Effective Compression Algorithm to PDF Format in Embedded System

作　　者：陶冶[1] 慕春棣[1] 

机构地区：[1]清华大学自动化系,北京100084

出　　处：《计算机工程》2005年第13期72-74,共3页Computer Engineering

摘　　要：提出的算法可以解决在嵌入式系统上显示含有文本和图像的PDF文件的要求。该算法先将PDF文件分解成图像和文本两部分,然后依照原文件的显示格式将分解出来的元素合成一种新的格式文件,最终实现将PC机上的PDF格式文件转化为适合在嵌入式系统上正确显示的格式。该算法缩减了文件的大小,使之适应于嵌入式系统有限的硬件资源,也扩大了嵌入式系统的文件来源。The algorithm presented in this paper can achieve the requirement that displays a file which contains both texts and pictures in embedded system. First, the algorithm decomposes PDF file into pictures and texts; then, it constructs the new file format according to the elements and the display format of the original file; at last, it displays the new file in embedded system. As a result, the algorithm translates PDF file format on PC to a file format which is suitable to display in embedded system. This algorithm reduces the size of the files, makes them more suitable to the limited hardware resource of the embedded system, and also extends the source of the files.

关 键 词：嵌入式系统 文件格式 PDF 压缩算法 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]