JPG vs PNG for metadata, is JPG preferred?

Started by 3design, November 30, 2012, 04:41:54 PM

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3design

November 30, 2012, 04:41:54 PM
I'm at the stage of my project where I'm going to be generating images from the TIFF master copies, for web-display, and I'm of course looking at PNG vs JPG. At this point in time, does PNG support all the same metadata that JPG does as far as EXIFTool is concerned, or is it still safer to go with JPG as the IPTC/XMP-tagged web display version?

Phil Harvey

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December 01, 2012, 08:00:37 AM
ExifTool supports EXIF, IPTC and XMP in PNG images, but most applications will only recognize XMP in PNG (if you are lucky).  So if XMP alone isn't sufficient, and interoperability is important to you, then you should use JPEG.

- Phil
...where DIR is the name of a directory/folder containing the images.  On Mac/Linux/PowerShell, use single quotes (') instead of double quotes (") around arguments containing a dollar sign ($).
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