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Jagged edges result when resizing JPG, reducing by 20%

Posted: 2019-08-15T01:41:50-07:00
by Oso
Is there a way to improve the results of reducing JPG dimensions? Even though the resulting logo is much smaller as I need it to be, the jagged edges are even visible despite its reduction in size.

convert logo.jpg -resize 20% logo_small.jpg

Results before and after can be seen here

The image is to be converted to PCL form, to output to a printer. Therefore, should I instead ask our artwork producer to supply us with a smaller version and then convert that to PCL?