Convert documents of TXT to fax by command line

In this article, you will see the specific steps about converting the document of txt to fax format file. The tool you will use is the command line application of Document Converter. It is a powerful application which allows users to convert any printable documents to many kinds of image formats and set many parameters for the target file.

Mentioned about Document Converter, it is a functional application combination of three internal applications—command line application, GUI application and virtual printer application. With the command line application, you can develop software for realizing the function of converting documents to image formats. With the GUI application, you can make batch conversion because it is good at batch conversion with a friendly and clear interface which can be accepted by most of people. When you use the virtual printer application, you can scale page size or combine several pages on one single sheet to save paper and ink.

To use the command line application, you should download it at and set up it on your computer until you see the executable file doc2pdf.exe in installation package of the command line application. The executable file doc2pdf.exe is the called program in the conversion of txt to fax. The one you download is only a free trial version and if you want to use all the functions of the application, you should buy the product at

There are three steps in the conversion. Please see the following contents.

The first step is to open MS-DOS interface. Please click “Start”—“Run” to open “Run” dialog box in which you need to input “cmd” in “Open” combo box and click “OK” button. With the help of the combination “Window”+ “R” on the keyboard, you can also open “Run” dialog box.

Then please input the command line for converting txt to fax in opened MS-DOS prompt window. The command line contains called program which is the executable file doc2pdf.exe, source file which is the TXT document you want to convert and the target file which is the Fax format file you need to get. Please see the following command line example:

doc2pdf –i C:\A.txt –o C:\A.fax

In which

doc2pdf stands for the called program.

–i C:\A.txt stands for the source file.

–o C:\A.fax stands for the target file.

Please remember to use the full paths of each file when you write the command line in MS-DOS prompt window and you should not ignore the options “-i” and “-o”.

The last step of the conversion from txt to fax is to click “Enter” button to run it.

If you want to know more information about Document Converter or any internal applications of it, please enter its homepage at

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