One day I received an electronic invoice and OFD file. What is this?
Baidu search wave ~
https://baike.baidu.com/item/OFD/56227163
unable to open OFD file, search OFD to PDF, the result is either unusable, poor experience, or charge, 1 yuan once......
Plan to develop it yourself!!
all kinds of search and exploration of how C# recognizes OFD files ended in failure......
Interspersed with research and development of other projects, several months have passed......
One day I found a JAVA solution, so I am now learning JAVA and deploying a set of java sites that receive base64 format ofd and output base64 format pdf.
After receiving the OFD file, the "Smart Tool Library" connects to the JAVA site to convert the format and finally presents the PDF or picture to the user.