What is the difference between jpg and pdf?

Difference: PDF files have a high degree of freedom of operation, and with special editing software, each part of the content can be edited; when jpg files are generated, the images will be compressed and synthesized, and the original files will no longer be supported. Editing of some content.

The operating environment of this tutorial: Windows 7 system, Dell G3 computer.

We often see that PDF format files and JPG format files both look like image formats. For a long time, everyone has always thought that they are the same and there is no difference. In fact, this is not the case. PDF There are certain differences with files in JPG format. The following article will introduce it to you.

1. Different formats

PDF is the abbreviation of Portable Document Format, which is a portable document format. The PDF file format can encapsulate text, fonts, formats, colors, and graphics and images that are independent of device and resolution in one file.

jpg is the file extension of JPEG format. JPEG is the abbreviation of Joint Photographic Experts Group. The file suffix is ​​".jpg" or ".jpeg", which is the most common Commonly used image file formats. Developed by a software development association, it is a lossy compression format that can compress images into a small storage space. Repeated or unimportant data in the image will be lost.

2. Differences and uses between PDF and JPG

PDF format: It is an electronic document reading format, and the electronic document reading program "Reader" must be installed You can then browse and read. PDF is a file format developed by Adobe Systems for file exchange in a manner that is independent of applications, operating systems, and hardware. PDF files are based on the PostScript language image model, so that they can reproduce the characters, colors and image information of the original on all types of printers. Widely used in electronic books, product descriptions, company announcements, network materials, and emails.

JPG format is a compressed file that compresses specific format image files edited and modified by various software and filters out some program information, leaving only the image file. JPG is a lossy image compression format that can compress images into a small storage space for faster transmission, decoding and display. Repeated or unimportant data in the image will be lost. It is widely used in image file storage, network picture sharing and storage, etc.

3. Different degrees of freedom of operation

PDF files have a high degree of freedom of operation. With special editing software, each part of the content can be edited. The format file can also contain electronic information such as hypertext links, sounds and dynamic images, supports special-length files, and has high integration, security and reliability.

#When the jpg file is generated, the image will be compressed and synthesized, and editing of the original content is no longer supported. Redundant images and color data are removed, and extremely high compression rates are obtained while displaying very rich and vivid images. In other words, better image quality can be obtained with the least disk space.

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