Silly Q about strobe disc

I printed out a free downloadable strobe disc on a regular format paper.Will it work or do i need to print out on oversized paper (which i don't have) so the disc will be the size of LP.Right now it is the size of a 7 inch single. Thanks.
Any size will work. The Cardas test LP has strobe patterns printed on the record label. We've recently made numerous strobe disks no larger than 8" in diameter. They all work fine.