This is an English public forum, in order to facilitate other users to read, please use English to communicate and describe the problem.
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Through the translation software, I learned that your description of the problem is roughly as follows:
I need to know what do I have to do to keep the bold fonts when I convert a word to pdf?
In my tests, bold fonts were retained after conversion to a PDF file.
Make sure that the font is already installed on your computer, and if you don't, the PDF file will use the default font format.
PC won't install some paid fonts by default, which you'll need to download manually.
Or you can try a different font.
If my understanding of your question is wrong, please correct me.
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