Writing EXIF data in Bridge

Question

Hi,<br /><br />I'm trying to write EXIF information into photos using Adobe Bridge and Extend Script. There were lots of scripts I found very useful as a start in this forum, but still I'm not able to write EXIF data.<br /><br />Found several approaches<br />1. According to the Bridge JS Reference it should be pretty straight forward:<br /><br />var m = app.document.thumbnail.metadata;<br />m.namespace = "http://ns.adobe.com/exif/1.0";<br />alert( "Metadata.Exposure: " + m.<metadataname> );<br /><br />But this doesn't return a value nor is it writable.<br /><br />2. A different syntax I found in a adobe script (using the MdNs objects from the AdobeLibrary3.jsx) would be:<br /><br />var md = <somethumb>.synchronousMetadata;<br />var exifKey = "exif:GPSLatitude";<br />var mdElement = null;     <br />var mData = null;<br />var mdElement = MdNs.elements.get(exifKey);<br />if ( isValidReference( mdElement ) ) {<br />   mData =  mdElement.getValue( md );<br />   alert(exifKey + "=" + mData);<br />}<br /><br />This syntax is working for reading the data. But how do I write?<br /><br />I would appreciate any help here, since the Adobe documentation on that is much too short.<br /><br />Thanks, Gerrit

Answer 1

Some fields in the EXIF standards are optional and many camera makers do not fill in optional fields like lens info.   They record information like that in their camera makers notes instead.  To verify what is what use a good image viewer that displays meta data well I think PhotoME does a good job.  Use it to display files written by your Camera to see what EXIF data it writes to begin with.