Exemple 

You can try to open this pdf at Chrome, if it shows text, that will be an issue for yout PDF reader.

Should be so

@UserSupport First picture was made from Chrome. Second was made print on wirtual printer.

Hi That is because of export PDF doesn't support this charaters, when use Print feature it generate by browser it will be correctly.

@UserSupport ``` Until a certain point, there were no problems with the font. This is a problem with a new vertion EasyEDA. Thank You. ```

@aeromash Yes, since v6.3, the PDF was generate by editor not server. the javascript is hard to solve the special charaters of PDF, that needs install font familys. and the PDF display depends on PDF readers, some readers display correctly, some does not. you can try server engine when export the PDF, or print the schematic as PDF

Thank You. I use a virtual printer. Just use menu "Print>Microsoft print to PDF".