1. Start your word processing software (Here, we take NotePad and Microsoft Word as an example)

2. Open a TXT (Plain Text Format) document

3. Select from main menu "File"->"Print"

4. Select Printer "Virtual PDF Printer"

5. If you need to adjust PDF generation options, click the "Property" button on the right

6. Click "OK"

7. A dialog will pop up, assign the folder and file name of the PDF document to be generated

8. Congratulations! You have converted TXT to PDF document now.