Metadata is useful in many ways, especially when searching or representing data. Smartphones also do the same, adding extra tags such as GPS data to show exactly where the photo was captured. For example, cameras add data about the manufacturer and its settings in a section outside the image data. What happens if you accidentally corrupt a media file while editing metadata?įile metadata is the information embedded into media files and documents typically hidden from user view and stored in the files as tags.How to edit or fix photo and video Metadata using ExifTool.Note that Phil Harvey (the author of ExifTool) quite often answers ExifTool forum questions.
If they are OK, then copy the images back to where they normally are. bat file to do what you want (see my other post in this thread), run it on the images in the new folder, verify that the EXIF fields were changed to be what you want. I'd suggest copying the images you want to modify to another folder. (The AllDates tag is provided as a shortcut for these three tags, allowing them to be accessed via a single tag.) Shift the values of DateTimeOriginal, CreateDate and ModifyDate forward by 1 hour and 30 minutes for all Canon images in a directory. See Image::ExifTool:: for details.)Įxiftool -createdate+=3 -modifydate+=3 a.jpg b.jpgĪdd 3 hours to the CreateDate and ModifyDate timestamps of two images.Įxiftool -AllDates+=1:30 -if '$make eq "Canon"' dir (This is equivalent to -DateTimeOriginal-=1.5. Look at the examples in the ExifTool docs on how to change timestamps:Įxiftool -DateTimeOriginal-='0:0 1:30:0' dirĪdjust original date/time of all images in directory dir by subtracting one hour and 30 minutes. The problem is that DxO and LR5 don't recognize changes made in exiftool. I think my teacher at photo store did it. It never happened to me before, but this time it was a mess.
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