Mike Bader wrote:

Remember SETI (or the certificate) is designed for people using 175
operating system platforms. Not all systems have the same graphic ability.
As well as there are already additional options for better resolution and
colors.

It must be a couple of years ago now, but the certificates used to be
PDFs of quite decent quality. It's not as if Acrobat Reader has sunk
into obscurity since then!

-- 
Odysseus 15# @ 35Y