Does PNG lose quality?

Related questions

1. How is arithmetic coding used in image compression?
2. Is a TIFF file compressed?
3. Is TIFF better quality than JPEG?
4. Who invented arithmetic coding?
5. Is a tiff a vector file?
6. Is TIFF compressed?
7. Is LZW compression lossless?
8. What is the difference between TIF and TIFF?
9. Why are TIFF files so big?
10. Is JPEG OK for printing?

Tags

1. #lossless
2. #images
3. #quality
4. #barely
5. #space
6. #might
7. #compression
8. #quarter
9. #means
10. #using
11. #compresses
12. #human
13. #losing
14. #without
15. #perceptible
16. #encode
17. #format
18. #economical