PDF of these four main characteristics, as a workplace you must be able to know

PDF.Anyone who has ever used a computer knows that the biggest impression you get is that you can't change files in this format. But not many people want to know what PDF really means. Now let's see what PDF is really like?

pdf (abbreviation of portable document format, meaning "portable document format") is Adobe Systems for the development of document exchange of a file format, with the application, operating system and hardware-independent. PDF documents based on the PostScript language image model, in any printer can ensure accurate color and accurate printing results, that is, PDF will faithfully reproduce the original every character, color and image. You can use merge pdf files i love pdf to perform a number of operations on the PDF.

From the above explanation, let's analyze its four characteristics:.

1, versatility

different systems (Windows, Mac, Unix, Android) have their own requirements for the document format. For example, in the Windows system, you can not view the MAC page format documents. However, the document format of the PDF is independent of the platform of the operating system, that is to say, the PDF format can be viewed on the Internet or any electronic document viewing device, independent of the system platform. So many similar books, product information, etc. will be disseminated in PDF format.

2, high-end market consistent format for the standard

We often encounter such a situation, you use different versions of software to do a document, often open the text, formatting paragraphs will appear or a small problem, PDF file format can encapsulate the text, fonts, formatting, color, and device-independent graphics and images in a file, any different systems or different versions of the software to open, the format is guaranteed to be consistent.

3, perfect viewing experience

We often collect eBooks online. As you can see, most of them are in PDF format. There are two main reasons. The first reason is the second point above, the second reason is that the e-book produced by PDF has the texture and reading effect of paper books, which can vividly show the original appearance of the original book, the display size can be adjusted at will, providing readers with a personalized way of reading.

4, not editable

Usually our contracts or important notification documents, most of the dissemination of PDF format, because for such documents, we generally require a higher, not only to ensure that the format is uniform, but also can not easily change any of the content. PDF is not for editing. Understandably, PDF content cannot be modified when it is in the form of an image, however, when the text in PDF is in the form of a non-image, sometimes it can not be modified, the main reason is the use of text distortion (removing object-specific attributes when you see the text is no longer the normal text format). Many people use third-party software called OCR to recognize the text, if the text resolution is high enough to be converted into editable text, but if the format is converted directly through the software, there are often encoding or document formatting errors.

PDF can be used in the daily work of where?

The company's contract documents, because we have this kind of document is generally a can not be changed to change any of the work content, just print and manually fill in some of the issues of the basic information content can be.

E-books, do not know each other's computer system platform or software version, you can directly use PDF to transfer files.