PDF (Portable Document Format) is a cross-platform electronic document format. It was originally designed to make it easy to view and print documents on a variety of computers and operating systems without regard to formatting and font differences between different computers and printers. You can use merge pdf files i love pdf to perform a number of operations on PDF.

PDF file data format requires the use of a page with a similar PostScript the main description of the student language, which can be accurately described through the Chinese text, graphics, pictures, audio, video and other cultural elements on the page location, size, color and other attributes. At the same time, PDF documents can also be designed to include a bookmark, hyperlinks, annotations and other elements to facilitate business users to manage navigation, search and interactive technology operations in the document.

The generation of PDF documents can be divided into the following steps.

Document Creation: When you create a document using various applications, you can save it in PDF format.

Content Description: When creating a PDF document, the application will usually automatically convert the content of the document into PDF language description.

PDF tags: PDF tags are a set of labels used to associate a PDF language description with the structure, content and metadata of a document. These tags define the location and properties of elements such as text paragraphs, headings, lists and images.

Compression and Optimization: Before saving PDF documents to disk data, we usually analyze them for compression and optimization to reduce system file size problems and improve the speed of opening and loading operations.

Storage and Distribution: Generated PDF files can be stored on a local computer or web server and distributed to other users via email, file sharing or web sites.

The PDF file format is generated through an application that converts the document content into a PDF language description, then adds PDF tags, compresses and optimizes it, and finally saves it for distribution.