Is there a way to read/write XMP metadata using imagemagick?

Question

I would like to read/write XMP metadata in JPEG and PNG files.

I'm able to do this using the exiftool

~ $ exiftool -xmp-dc:description="FooBar" sample.png
    1 image files updated
~ $ exiftool sample.png | grep "Description"
Description                     : FooBar

However, I'm not able to read the XMP Metadata using imagemagick

~ $ identify -verbose sample.png | grep "Description"

My reason to write XMP metadata is that so it can be read by Adobe Products.

Question

Is there a way to read/write XMP metadata using imagemagick?

Off topic, but compatibility with Adobe products isn't the only reason to want to manipulate XMP metadata. http://www.metadataworkinggroup.org/pdf/mwg_guidance.pdf — asp, Jun 29 '15 at 23:41
png doesn't support metadata --> http://stackoverflow.com/questions/9542359/does-png-contain-exif-data-like-jpg — Eric Kirchner, Jul 14 '15 at 08:19
That's only with regards to EXIF metadata (though Exiftool and Exiv2 have a workaround). PNG does support XMP metadata https://en.wikipedia.org/wiki/Extensible_Metadata_Platform#Location_in_file_types *Edit:* Bah, didn't check the dates — StarGeek, Oct 20 '16 at 05:19

score 1 · Answer 1 · answered Jun 25 '14 at 16:06

What you want to ask is "does ImageMagick support reading or writing XMP (descriptive) metadata?". The answer to that question, from reading the documentation, is no. ImageMagick reads (almost) all metadata from a file, but not descriptive metadata.

If for some reason you must use ImageMagick to extract XMP metadata, you could try to include a filter. Filters can be configured to process image files, but they are not part of ImageMagick itself.

score 1 · Answer 2 · answered Oct 20 '16 at 04:17

1

convert -ping yourimage.jpg XMP:-

answered Oct 20 '16 at 04:17

jento

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score 0 · Answer 3 · edited Feb 03 '18 at 03:11

0

Access XMP data can be done as follows:

ImageMagick.XmpProfile xmp = image.GetXmpProfile();

Console.WriteLine("\n\n----> xmp:" + xmp);
if (xmp != null)
{
    you have to process the XML data of the XMPs result.  
    ie. use XPATH or some other XML interface.
}

edited Feb 03 '18 at 03:11

Stephen Rauch

47,830
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answered Feb 03 '18 at 02:51

Mark

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6

Is there a way to read/write XMP metadata using imagemagick?

3 Answers3