EXIF is where the interesting info is stored, like camera settings, capture time, location and colour space. Types of metadataĮXIF, IPTC and XMP are the 3 metadata formats you will commonly find in an image, with EXIF being the most familiar to photographers. Here are some examples of what an image file can hold: Google likes to keep every bit of info. Image metadata can contain info about the time and location a picture was taken, the camera settings that were used, the camera itself (make, model, serial numbers), how it was edited, the copyright and author, and many other things. If you make and share pictures, even just snaps you make with your phone, it’s good to have a little knowledge about what’s actually in those picture files. Why would I want to use ExifTool in the first place?ĮxifTool is a program that edits metadata on images. This intro is about why you would want to use ExifTool in the first place. … which avoids the need for the -sep argument and ensures that the subject tag is read back as a true list.For the instructions straight up, skip to the section ‘Actually Using ExifTool’. It would appear that you were right in using the -sep argument but only because some apps are not as smart as others, or maybe they are too smartĮxiftool -overwrite_original_in_place -quiet -subject='cat' -subject='chat' -subject='egyptian mau' -subject='mau égyptien'
Now, subject is a list or array tag, but both my app and PL5 are being “smart” and interpreting that “single word” as a list. On further investigation, it would appear that, because you have chosen to put comma-separated keywords within quotes, in order to simplify the command, the subject is being written as one single “keyword” including the commas unless you add the -sep argument. Subject : mau égyptien,egyptian mau,chat,catīut my app and PL5 interpret both versions correctly. If I don’t include it, ExifTool reads back the subject as… Subject : mau égyptien, egyptian mau, chat, cat If I use the -sep argument, ExifTool reads back the subject as… It would appear that NeoFinder is misinterpreting the subject tag. The documentation states that the default, if -sep is not specified, is assumed to be “,”Įxiftool -subject='mau égyptien,egyptian mau,chat,cat' _JNA0004.NEF Well, if I do not set this argument, the keywords are just one:
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