: Even at level 12, JPEG remains a lossy format. Each time you re-save a file, it undergoes minor degradation. 12-Bit JPEG Depth
In Adobe Photoshop, the JPEG saving scale ranges from 0 to 12. Selecting 12 represents the "Maximum" quality setting. 12.jpg
Are you asking about a named "12.jpg" or looking for help adjusting the quality settings in a particular program? : Even at level 12, JPEG remains a lossy format
: Because compression is minimal, files saved at level 12 are significantly larger than those at lower levels (like 8 or 10) without always offering a visible improvement in quality to the human eye. : Even at level 12
: 12-bit JPEGs can store significantly more color information (4,096 tones per channel) compared to 8-bit.