Photos for Ads at the Art Market must be limited in size to a width of 400 pixekls and must have a Resolution of 72ppi.

The subject of photo resolution and sizing is probably one of the most confusing subjects in computer graphics, and if you don’t think it is, you probably don’t really know very much about it.

For this resizing, there are some very simple, online solutions and this is one of my favorites – a website called ShrinkPictures.com

The interface is elegant in its simplicity
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