I am getting the following error when I run exiftool:
"Can't modify constant item in scalar assignment at /home/michael/.ExifTool_config line 37, near ");"
I tried changing the first line in my config file by adding "=>" instead of "=", which generates different errors.
Image::ExifTool::UserDefined = (
'Image::ExifTool::Exif::Main' => {
0xd000 => {
Name => 'Periodical',
Writable => 'string',
WriteGroup => 'IFD0',
},
},
'Image::ExifTool::Exif::Main' => {
0xd001 => {
Name => 'Volume',
Writable => 'string',
WriteGroup => 'IFD0',
},
},
'Image::ExifTool::Exif::Main' => {
0xd002 => {
Name => 'DOI',
Writable => 'string',
WriteGroup => 'IFD0',
},
},
'Image::ExifTool::Exif::Main' => {
0xd003 => {
Name => 'Publisher',
Writable => 'string',
WriteGroup => 'IFD0',
},
},
'Image::ExifTool::Exif::Main' => {
0xd004 => {
Name => 'Publication Date',
Writable => 'string',
WriteGroup => 'IFD0',
},
},
);
#------------------------------------------------------------------------------
1; #end
OK, I was missing the "%" on the first line, but my tags still aren't working. Now I get just "Warning: Tag 'Periodical' is not defined".
%Image::ExifTool::UserDefined = (
'Image::ExifTool::Exif::Main' => {
0xd000 => {
Name => 'Periodical',
Writable => 'string',
WriteGroup => 'IFD0',
},
},
'Image::ExifTool::Exif::Main' => {
0xd001 => {
Name => 'Volume',
Writable => 'string',
WriteGroup => 'IFD0',
},
},
'Image::ExifTool::Exif::Main' => {
0xd002 => {
Name => 'DOI',
Writable => 'string',
WriteGroup => 'IFD0',
},
},
'Image::ExifTool::Exif::Main' => {
0xd003 => {
Name => 'Publisher',
Writable => 'string',
WriteGroup => 'IFD0',
},
},
'Image::ExifTool::Exif::Main' => {
0xd004 => {
Name => 'Publication Date',
Writable => 'string',
WriteGroup => 'IFD0',
},
},
);
1; #end
You are overwriting the value of 'Image::ExifTool::Exif::Main' with each entry. Try this:
%Image::ExifTool::UserDefined = (
'Image::ExifTool::Exif::Main' => {
0xd000 => {
Name => 'Periodical',
Writable => 'string',
WriteGroup => 'IFD0',
},
0xd001 => {
Name => 'Volume',
Writable => 'string',
WriteGroup => 'IFD0',
},
0xd002 => {
Name => 'DOI',
Writable => 'string',
WriteGroup => 'IFD0',
},
0xd003 => {
Name => 'Publisher',
Writable => 'string',
WriteGroup => 'IFD0',
},
0xd004 => {
Name => 'PublicationDate',
Writable => 'string',
WriteGroup => 'IFD0',
},
},
);
1; #end
Also, tag names shouldn't have spaces.
- Phil
I'm still getting errors as follows:
$ exiftool -Periodical='Political Psychology' 'Huddy, L. (2001). From social to political identity: A critical examination of social identity theory.pdf'
0 image files updated
1 image files unchanged
$ exiftool -config '~/.ExifTool_config' -Periodical='Political Psychology' 'Huddy, L. (2001). From social to political identity: A critical examination of social identity theory.pdf'
Config file not found
Warning: Tag 'Periodical' is not defined
Nothing to do.
You are trying to write EXIF information to PDF, but PDF doesn't support that format natively.
I don't know why you are trying to create custom tags, but you should be writing standard XMP tags if possible. There are a number of pre-defined XMP tags that cover most of what you want to write. See the XMP tags documentation (https://exiftool.org/TagNames/XMP.html) for a complete list.
- Phil
I think the XMP-prism tags (https://exiftool.org/TagNames/XMP.html#prism) are what you are looking for.
Phil, the URL for the PRISM standard has a trailing slash which breaks the link.
Quote from: StarGeek on September 24, 2024, 10:05:15 PMPhil, the URL for the PRISM standard has a trailing slash which breaks the link.
Thanks. Fixed.
- Phil