I have solved the language problem. Simply register for Claude.AI, upload the file or text you want to translate, and write the following:
Please make me a perfectly (into -the language you want-) translated Markdown PDF, enhanced with your expertise, and add some colors for a better look as well.
Works all the time, until you hit your free Claude;ai limit, and then just take another Google account. The limit is not very small. 🤑