re:hake
pdf 介绍
Adobe Reader 可以看.
PDF（Portable Document Format）文件格式是Adobe公司开发的电子文件格式。这种文件格式与操作系统平台无关，也就是说，PDF文件不管是在Windows，Unix还是在苹果公司的Mac OS操作系统中都是通用的。这一特点使它成为在Internet上进行电子文档发行和数字化信息传播的理想文档格式。越来越多的电子图书、产品说明、公司文告、网络资料、电子邮件开始使用PDF格式文件。PDF格式文件目前已成为数字化信息事实上的一个工业标准。
Adobe公司设计PDF文件格式的目的是为了支持跨平台上的，多媒体集成的信息出版和发布，尤其是提供对网络信息发布的支持。为了达到此目的， PDF具有许多其他电子文档格式无法相比的优点。PDF文件格式可以将文字、字型、格式、颜色及独立于设备和分辨率的图形图像等封装在一个文件中。该格式文件还可以包含超文本链接、声音和动态影像等电子信息，支持特长文件，集成度和安全可靠性都较高。
PDF文件使用了工业标准的压缩算法，通常比PostScript文件小，易于传输与储存。它还是页独立的，一个PDF文件包含一个或多个“页”，可以单独处理各页，特别适合多处理器系统的工作。此外，一个PDF文件还包含文件中所使用的PDF格式版本，以及文件中一些重要结构的定位信息。正是由于 PDF文件的种种优点，它逐渐成为出版业中的新宠。
对普通读者而言，用PDF制作的电子书具有纸版书的质感和阅读效果，可以“逼真地”展现原书的原貌，而显示大小可任意调节，给读者提供了个性化的阅读方式。由于PDF文件可以不依赖操作系统的语言和字体及显示设备，阅读起来很方便。这些优点使读者能很快适应电子阅读与网上阅读，无疑有利于计算机与网络在日常生活中的普及。Adobe公司以PDF文件技术为核心，提供了一整套电子和网络出版解决方案，其中包括用于生成和阅读PDF文件的商业软件Acrobat和用于编辑制作PDF文件的Illustrator等。 Adobe还提供了用于阅读和打印亚洲文字，即中日韩文字所需的字型包。
但通常Adobe Reader太大,现在最流行的是用Foxit Reader pro
下载地址:
http://tianzizhi.disk365.cn
re:hake
PDF Introduction
Adobe Reader can be used to view.
The PDF (Portable Document Format) file format was developed by Adobe Systems. This file format is platform - independent, meaning PDF files are universal whether on Windows, Unix, or Apple's Mac OS operating systems. This feature makes it an ideal document format for electronic document distribution and digital information dissemination on the Internet. More and more e - books, product specifications, company announcements, web materials, and emails are using PDF format files. The PDF format has now become a de facto industrial standard for digital information.
Adobe designed the PDF file format to support cross - platform, multimedia - integrated information publication and distribution, especially to provide support for web information distribution. To achieve this, PDF has many advantages that other electronic document formats can't match. The PDF file format can encapsulate text, fonts, formats, colors, and graphics and images independent of devices and resolutions in one file. This format can also contain hypertext links, sound, and dynamic video and other electronic information, support very long files, and has high integration, security, and reliability.
PDF files use industry - standard compression algorithms and are usually smaller than PostScript files, making them easy to transmit and store. It is also page - independent; a PDF file contains one or more "pages" and each page can be processed separately, which is especially suitable for multi - processor system work. In addition, a PDF file also contains the version of the PDF format used in the file and the positioning information of some important structures in the file. It is precisely because of the various advantages of PDF files that it is gradually becoming a new favorite in the publishing industry.
For ordinary readers, e - books made with PDF have the texture and reading effect of paper books, can "vividly" show the original appearance of the book, and the display size can be adjusted arbitrarily, providing readers with a personalized reading method. Because PDF files can be independent of the operating system's language, fonts, and display devices, reading them is very convenient. These advantages enable readers to quickly adapt to electronic reading and online reading, which is undoubtedly conducive to the popularization of computers and networks in daily life. Adobe Systems takes PDF file technology as the core and provides a complete set of electronic and web publishing solutions, including the commercial software Acrobat for generating and reading PDF files and Illustrator for editing and creating PDF files. Adobe also provides font packs for reading and printing Asian characters, namely Chinese, Japanese, and Korean characters.
But usually Adobe Reader is too large, and now the most popular one is Foxit Reader pro
Download link:
http://tianzizhi.disk365.cn