What is the file format of ofd?

ofd is an electronic file with a highly precise and fixed layout, and its presentation has nothing to do with the device; ofd is similar to a pdf file, with the characteristics of independent format, fixed layout, and solid presentation; ofd has also gradually begun to be used in electronic invoices, Applications in electronic official documents, electronic certificates and other fields.

#The operating environment of this tutorial: Windows 10 system, Dell G3 computer.

OFD (short for Open Fixed-layout Documents, meaning open layout files) layout documents are electronic files with highly precise and fixed layout effects, and their presentation is independent of the device. Similar to PDF files, it has the characteristics of independent format, fixed layout, and solid presentation. It can be said that OFD is the Chinese version of PDF, but its performance is better than that of similar PDF documents in many aspects. OFD has also gradually begun to be applied in the fields of electronic invoices, electronic official documents, electronic certificates, etc.

OFD standard has a series of technical advantages. First, the size is streamlined, the format is open, easy to understand, and can be read and used for a long time; second, OFD features are expanded according to the characteristics of various fields in my country, and more deeply meets application needs; third, the OFD standard can support domestic cryptographic algorithms. It is a strong guarantee of document security and a basic condition for the document to have legal effect; fourth and most important point, the OFD standard is autonomous and controllable. When the country needs to make the above-mentioned expansion of OFD, especially in The application field of serious documents for my country's party, government and military does not need to be controlled by external manufacturers. We have our own right to speak on standards. These advantages are not available in PDF or in the past private document formats of some domestic manufacturers.

Related expansion:

Electronic documents differ from printed documents in the following four main characteristics: easy to modify, easy to delete, easy to copy, and easy to damage.

Easy to modify

This is an important difference between electronic documents and traditional printed documents. Printed documents and handwritten documents have a common shortcoming, which is that once they are printed or written, they are difficult to modify. , this feature is good at certain times. For example, the "black and white text" that people often say can very well reflect this feature; but its advantages are also its shortcomings. When people process a lot of text and graphic image information, they often The processed content needs to be modified to meet different needs. At this time, electronic documents show its advantages. It is precisely because of the easy modification of electronic documents that if they are not well protected, they may be illegally modified. Regardless of whether the modification is intentional or unintentional, it will bring a certain degree of loss to the document owner. At this time, it will becomes a shortcoming.

Easy to delete

It is basically unrealistic to delete documents in the traditional way. It can only destroy the printed materials that are the carrier of the information, because the printed materials generally go through archives and filing cabinets. For protection, it is relatively difficult to be contacted by ordinary people, so it is not easy to be damaged and has better security. But for electronic documents, deletion is very convenient. You only need to have the permission to modify the file (this permission can often be obtained through legal and illegal means), and then it is very easy to delete the file by clicking the mouse or using the keyboard. Under normal circumstances, there is no evidence afterwards to explain the time and reason why the files were lost. It is this characteristic that, if used by others to carry out malicious sabotage activities, may cause irreparable losses to the owner of the electronic document.

Easy to copy

Traditional copying of documents often requires some auxiliary materials and machines, such as copy paper, photocopiers and other related materials. This is an advantage and a disadvantage of electronic documents. The advantage is that through copying, people can share information very conveniently. However, when a document is a personal privacy or business secret, you often don’t want others to see it. If it is copied by others, it will cause personal privacy exposure or business leakage, which the document owner does not want to see. What needs to be solved here is Confidentiality of documents.

Easily damaged

The main reasons for file damage include hardware damage, man-made damage (intentional or unintentional), virus damage, factors irresistible to humans (fire, earthquake, etc.), as far as the reasons for file damage are concerned In the survey, 80% of the files were damaged by man-made damage, and the remaining 20% ​​of the files were damaged due to various other factors. For man-made damage, we must take active measures to prevent it, otherwise it is likely to cause huge losses due to negligence. ; For situations other than man-made destruction, a more effective measure is to make backups.

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