@markjirousek said:

Many logos are too big, exceeding the maximum authorised dimensions.

Those logos aren't too big. If you're referring to this line in the Contribution Bible:

Both SVG and PNG formats can't be bigger than 2000px in either dimension (width or height.)

That applies only to Company/Network logos, not Title logos.

Indeed, my bad.

The two last links I provided should still be deleted though. Lower quality duplicates.

Done.