If this question is better suited in another forum, please let me know.
The following example PDF has been used in a workflow where the XMP meta data has been updated with new values (e.g. dc:identifier has the value Metropoles).
When opening this file and looking at the meta data in for example Acrobat Pro this new updated information is not viewed but the old XMP stream is instead read by Acrobat (pdfLib).
The update looks correct as far as I can see, the object 54 has been updated and the new xref table at the end has the correct start byte for this new updated stream (byte 0022017676). So I can not understand why this new stream of XMP is not viewed in Acrobat.
Does anyone see any error in the PDF or is there any obvious reason why Acrobat wouldn't read the new XMP stream?
(other software using exiftools extract the new XMP correctly, I have also tested with some tool written in pure java and that will also show the new updated XMP as the currently working meta data)
Link to test PDF (appr 22 MB)