By leaving its current format do you mean keeping the translated text in the publication as it is?
You can use google translate to translate images/screenshots if that’s what you’re after although the text it produces is less than ideal for something that you plan on distributing. But it depends on your intended purpose really.
I tried, but it didn’t translate anything. It just returned me the pdf as is.
I’m assuming that’s because you uploaded the PDF directly and it attempted to extract the (non-existent) embedded text within the PDF and so it just skipped all the pages because it presumed that the pages were just images.
Here’s what the first page of the pdf returned for me by screenshotting it and uploading it to Google Lens:
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