Is the pdf a scanned copy?

Is the pdf a scanned copy?

The file in pdf format is not necessarily a scanned copy, because files in other formats such as word and txt are not necessarily scanned copies. It can also be converted into pdf format files. Scanned documents specifically refer to documents that are scanned into image format and then saved in PDF format.

PDF is a file format, short for Portable Document Format, which means "portable document format". Usually when scanning with the printer, you can choose to scan into image or PDF format.

PDF files are based on the PostScript language image model, which ensures accurate colors and accurate printing effects no matter what kind of printer is used. That is, PDF will faithfully reproduce every character, color and image of the original. elephant. PDF files are universal regardless of whether they are in Windows, Unix or Apple's Mac OS operating system.

Common tools for reading PDF files

1. Adobe AcrobatReader

allows you to read PDF documents, fill in PDF forms, view PDF file information, and edit quickly Convert PDF documents to Word and Excel. Good stability and compatibility. The disadvantages are that it is bulky and slow to start.

2. Foxit Reader

can realize most of the reading functions. green software. Small size and fast startup speed.

3. Baidu Reader

can realize most of the reading functions. Perfectly supports mainstream formats such as epub, pdf, txt, doc, ppt, etc.

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