Missing fonts in PDF advertisement--rasterize or leave as-is

[Carta]

I'm working in Publisher on a Mac to create a multi-advertisement piece that will be printed. One advertiser sent a PDF for their ad and it brings up a Preflight error: "Placed PDF Version (PDF_1.7) is not compatible with the PDF export version..." Their ad uses fonts not available to me. And using the Fix option substitutes fonts, changing the look of the ad.

My question is, should I leave it as-is or should I Rasterize it?

When I export the page of ads with Publisher's PDF (Press Ready) option, and open the exported PDF in Acrobat, all looks well. Do I trust that the ads will look the same as I see it when the file goes to the printing company? (I'm not sure how Publisher handles a PDF without fonts present on my system.)

The other option is to rasterize this ad in Publisher. When exported to PDF, at 200% zoom in Acrobat, the type still looks sharp (non-pixelated).

Any best-practices advice would be really appreciated!

[Catshill]

I ignore that preflight error and have no issues when exporting for my commercial printer. No issues at all with hard copy. Online PDFs will have flattened elements I suspect that may be an issue for some but not in my case.

[Carta]

6 hours ago, Catshill said:

I ignore that preflight error and have no issues when exporting for my commercial printer. No issues at all with hard copy. Online PDFs will have flattened elements I suspect that may be an issue for some but not in my case.

Thanks, Catshill.

Imported PDFs look "right" and they look right again when I export the publication that contains them, as a PDF for print. But I wasn't trusting my eyes.