The difference between PDF and JPEG

The difference between PDF and JPEG

JPEG and PDF are two of the most popular file data formats for saving and sharing service content. convert pdf to word online for free adobe acrobatThere are pros and cons to both digital image display and text content management, but here we can learn more about the nature and functionality of JPEG and PDF to use them in the right scenarios.

What is JPEG?

JPEG (or JPG) stands for Joint Photographic Experts Group. merge png to pdf ilovepdfIt is one of the most widely used image file formats in the world. JPEG compresses color photos to a smaller size, making it the best way to store and share digital images, and it is also an ideal choice for social, e-mail and Internet photo transmission.

What is PDF?

PDF is short for portable document format, which means“Portable document format”. merge two pdf pages into one page macIt is a file format developed by Adobe Systems for file exchange, independent of applications, operating systems, and hardware. PDF is platform independent, that is, PDF files are common on Windows, Linux, and Mac OS.

This feature makes it an ideal file format for electronic document distribution and digital information dissemination on the network. More and more e-books, product descriptions, company announcements, online materials and emails are using PDF files. At the same time, PDF is an ideal choice for printing, because it can maintain the integrity of all page components and ensure the quality of the enlarged image.

What's the difference between JPEG and PDF?

Both JPEG and PDF can be used to store and share image and text data, but for some problems, there is no difference between the two formats.

Compression aspect

Jpegs use lossy compression, which can permanently corrupt files when they are compressed. By removing redundant images and color data, a very high compression rate can be obtained, while displaying very rich and vivid images. In other words, better image quality with minimal disk space. The file size is relatively small, making it easy to store and share on the network.

The compression method used in PDF will not damage the original quality of the file, and its file size will be larger than JPEG. PDF encapsulates words, fonts, formats, colors, graphics and images independent of devices and resolutions in one file. Suitable for storing rich files. But it is difficult to integrate into web pages.

editable

The main advantage of PDF is that it preserves the layout of the content, so that different components are independent, all parts can be edited, different component content can also be edited separately (requires a specific editor, such as Acrobat Pro), and the file can contain electronic information such as hypertext links, audio and moving images.

JPEG files have been compressed and synthesized in the image when they are generated, and all the contents are in one layer, which is a whole and does not support the editing of the original components.

This means that PDF is a format that allows student users to copy portions of text or image information in some cases. However, PDF can not embed the whole design file into other related documents. If you want to embed images in different documents in China, you can only use JPEG format.

JPEG and PDF files: Common problems

Which picture quality is better, JPEG or PDF?

PDF is generally of higher quality than JPEG. This is because JPEG uses lossy compression to compress images, resulting in an irreversible loss of quality. Also, PDF is of high visual quality and is the preferred format for printing files.

Is PDF larger than JPEG?

In this case, PDF is usually larger than JPEG, because PDF can display rich media (i.e. video, audio, animation and other information interaction design experiences), while JPEG usually contains only one target image. Another main reason why JPEG is smaller than PDF is that its lossy data format provides a higher compression ratio than PDF in terms of quality management tradeoff.

Can you convert PDF to JPEG or JPEG to PDF?

There are many ways to convert between PDF and JPEG formats. To convert PDF to JPEG, you can use the PDF to Picture function of plotter (http: u002f u002ffwww.zhituji.cn).

How to digitally sign JPEG?

JPEG is not suitable for digital signatures. You can add graphics and text to a JPEG by clicking the Drawing tool on the Edit menu and saving the file again. However, this method is not standardized and many recipients of digital signatures may not accept it. A more legitimate way to sign a JPEG file is to print the file, sign it physically, and then scan the document for digitization.

Relatively simple, PDF is very suitable for students to learn digital signature. You can directly use the digital signature function in the PDF editor to sign. There are also many third-party payment tools that we can analyze digital signatures, and the signatures are legal.