Translate transcript of records?

Y

Dear all,
I would like to apply for a PhD position that, among other things, requires me to submit "records of first- and second-cycle studies (transcript of courses and grades)".
The respective university is Swedish, so applications in English are fine. However, I completed my BSc and MSc in Germany, and my certified transcript is written in German as well.
I did create a translated version of it at one point digitally (when applying for an internship), but of course it's not certified.
Now I wonder how I should proceed.
Is it necessary at all to submit a certified transcript? (If they didn't need that, how would the staff know my grades aren't forged? Or do they usually just trust you with that?)
Should I submit just my (uncertified) translated version, or both the translated version and a pdf of my scanned certified German transcript? Or is it necessary to somehow have my former university certify a translation of my transcript?

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