pdf can be a picture or a document. For example, in a DOC document, the user can paste words in the form of pictures; pdf means "portable document format" and is used by Adobe Systems for applications A file format developed for file exchange in a program-, operating-system, and hardware-independent manner.
#The operating environment of this article: windows10 system, thinkpad t480 computer.
Recommended: "Programming Video"
pdf can be a picture or a document; for example, in a DOC document, the user can put words in the form of pictures Just like pasting it in.
PDF (short for Portable Document Format, meaning "portable document format") is a file format developed by Adobe Systems for file exchange in a manner independent of applications, operating systems, and hardware. . PDF files are based on the PostScript language image model, which ensures accurate colors and accurate printing effects no matter what kind of printer is used. That is, PDF will faithfully reproduce every character, color, and image of the original document.
Portable Document Format is an electronic file format. This file format has nothing to do with the operating system platform, that is to say, PDF files are universal whether they are in Windows, Unix or Apple's Mac OS operating system. 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 descriptions, company announcements, online materials, and emails are beginning to use PDF format files.
The purpose of Adobe's design of the PDF file format is to support the publication and release of multimedia integrated information across platforms, especially to provide support for network information release. To achieve this purpose, PDF has many advantages that other electronic document formats cannot compare with. The PDF file format can encapsulate text, fonts, formats, colors, and graphics and images that are independent of device and resolution in one file. Files in this format can also contain electronic information such as hypertext links, sounds and dynamic images, support special-length files, and are highly integrated, secure and reliable.
For ordinary readers, e-books produced with PDF have the texture and reading effect of paper books, and can realistically show the original appearance of the original book, and the display size can be adjusted arbitrarily, providing readers with personalized way of reading.
The above is the detailed content of Is pdf a picture or a document?. For more information, please follow other related articles on the PHP Chinese website!