I am willing to add Chinese translation to print-designer. Where is the translated document?

I am willing to add Chinese translation to print-designer. Please tell me where is the added translation document?

Please, I am a Chinese user, I want to use print-designer, but he is in Chinese, our customer service here can not understand English, I want to add Chinese translation for print-designer, I think I should follow the language selection with erpnext?

If erpnext is in Chinese, the print-designer should also be in Chinese, but he only has English at present. I would like to add Chinese translation. Please tell me where to add Chinese translation for the document.

【 I am willing to donate my time 】

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Does print_designer-1.4.3 already have translation capabilities? Can I just add the translations zh.csv file?