File formats

[Harry G]

How does .png file formats compare in quality to .tiff or .jpg files?  I
need to scan and save a lot of photos, and these are my choices for
formats.

TIA

Harry G
-- 

"If ye love wealth better than liberty, the tranquility of servitude
better than the animating contest of freedom, go home from us in peace.
We ask not your counsels or your arms. Crouch down and lick the hands
which feed you. May your chains set lightly upon you, and may posterity
forget that ye were our countrymen." -Samuel Adams