PDF is the abbreviation of Portable Document Format, which means "a format that can carry document data".

What does PDF mean?

PDF is the abbreviation of Portable Document Format, which means "a format that can carry document data". convert pdf to word online for free adobe acrobatIt is a file content format developed by Adobe Systems for the independent exchange of relevant file information among application research programs, operation management systems and hardware platforms. PDF file is an image model based on Postscript language. No matter what kind of technology printer we use, it can be used as a guarantee of accurate color and accurate printing teaching effect, that is, PDF will faithfully reproduce every Chinese character, color change and image of the manuscript.

Portable file format is an electronic file format. merge png to pdf ilovepdfThis is a platform-independent file format, which means PDF files are common on Windows, Unix, and Mac operating systems. This feature makes it an ideal document format for electronic document distribution and digital information dissemination on the internet. PDF files are increasingly used in e-books, product descriptions, company statements, web profiles, and e-mail.

Generally speaking, PDF documents have the following characteristics:

PDF file is a programming form of document format, merge two pdf pages into one page macit all shows the content, are drawn through the corresponding operator.

The basic display units of PDF include: text, picture, vector picture and picture.

PDF extended business unit mainly includes: Watermark, electronic signature, notes, forms, multimedia, 3d

PDF action unit: bookmarks, hyperlinks (for beginners, this is easy to understand. For those who go deeper, there are many action units, including electronic signature, multimedia, 3D and so on. )

Pros: 1. Easy to create: almost all major document editors have a“Save as PDF” option, so users can convert various documents to PDF at any time, and then send them, even if they don't have a professional PDF editor on hand.

Strong compatibility: PDF documents can be embedded in almost any mainstream multimedia format and support DRM copyright protection, so many publishers will use this format to make e-books.

Rich tagging tools: reading a PDF ebook is also a great experience for readers. In general, though, you can't modify the contents of a document as directly as a Word document. However, readers can add colorful notes, such as Bloom's. This is very close to the experience of reading and taking notes, so the experience is very good.

Integrity of content: Some people say that if we are just enterprises, it is better to cut a picture in order to make each other look the same. It may be possible for relatively simple and casual occasions, but the pictures are easily converted by various data formats, and some details are lost due to changing the structure size, and even forged by PS. Therefore, if they are mainly used by their own majors, it is recommended that the PDF should not be modified at will in China.

Security: in addition to not being editable freely, PDFS supports password protection to ensure that content is not tampered with. These two features make pdfs particularly popular with business people and even the legal community.

Small size: Many people will scan paper documents into pictures and save them directly on the hard disk, and the obtained files are very large. But if converted to PDF, it can usually reduce the volume by about a quarter; You can also embed multiple images in the same PDF document, which is more professional than putting a bunch of images in a folder or zip package.

All the advantages of PDF documents, is there any software to create and edit PDF documents? Of course, Wanxing PDF is such a software. The interface is simple and easy to use. You can annotate PDF documents and convert PDF documents to HTML, Word, PowerPoint, and other formats.