Title: Delete MakerNotes on Windows or Mac
Post by: RossTP on July 13, 2016, 04:04:23 AM
Post by: RossTP on July 13, 2016, 04:04:23 AM
I'm trying to delete makernotes on thousands of images. I've successfully managed to do this for minor errors using:
exiftool -r -makernotes:all= -overwrite_original -ext jpg .
However, thousands of images have a makernote warning (Bad ExifIFD offset), and when I try to delete the makernotes I get the following error:
Error: Bad ExifIFD offset for MakeNoteUnknown
0 image files updated
1 files weren't updated due to error
Is there any way to delete these makernotes? Or fix them in some way. Example image attached.
Thanks in advance!
Ross
exiftool -r -makernotes:all= -overwrite_original -ext jpg .
However, thousands of images have a makernote warning (Bad ExifIFD offset), and when I try to delete the makernotes I get the following error:
Error: Bad ExifIFD offset for MakeNoteUnknown
0 image files updated
1 files weren't updated due to error
Is there any way to delete these makernotes? Or fix them in some way. Example image attached.
Thanks in advance!
Ross
Title: Re: Delete MakerNotes on Windows or Mac
Post by: Hayo Baan on July 13, 2016, 04:16:42 AM
Post by: Hayo Baan on July 13, 2016, 04:16:42 AM
Hi Ross, the sample image you uploaded was zero bytes so I couldn't test to see what can be done with it...
Title: Re: Delete MakerNotes on Windows or Mac
Post by: RossTP on July 13, 2016, 04:18:45 AM
Post by: RossTP on July 13, 2016, 04:18:45 AM
Sorry about that. Not sure why that happened. Attaching again.
Title: Re: Delete MakerNotes on Windows or Mac
Post by: Hayo Baan on July 13, 2016, 07:26:30 AM
Post by: Hayo Baan on July 13, 2016, 07:26:30 AM
Got the file and played with it a bit. It does indeed contain quite a severe error, so severe, exiftool can not ignore it, even with the -m option (see also FAQ#15 (http://www.exiftool.org/faq.html#Q15)). The only solution I saw was to have exiftool attempt to completely rewrite the metadata (FAQ#20 (http://www.exiftool.org/faq.html#Q20)). This worked but did not include the faulty makernotes, but these you wanted to remove anyway, so that's no problem :)
The command to use here is: exiftool -all= -tagsfromfile @ -all:all -unsafe -icc_profile FILE/DIR
Hope this helps,
Hayo
The command to use here is: exiftool -all= -tagsfromfile @ -all:all -unsafe -icc_profile FILE/DIR
Hope this helps,
Hayo
Title: Re: Delete MakerNotes on Windows or Mac
Post by: RossTP on July 13, 2016, 08:44:59 AM
Post by: RossTP on July 13, 2016, 08:44:59 AM
Hi Hayo, thanks so much for this. It worked perfectly!