Transform Service uses the ExifTool for metadata extraction. It is used by Apache Tika for extracting image metadata if the auto-detect parser is enabled, which automatically figures out what kind of content you have, then calls the appropriate parser for you.
See the ExifTool website for installation instructions.
The steps to install are:
- Download exiftool
- Unzip exiftool
- ExifTool needs to then be installed globally
Example installation based on a downloaded image-exiftool-12.25.tgz file:
Create a new directory named exiftool under your Alfresco installation, such as /usr/local/acs74 directory.
$ sudo mkdir /usr/local/acs74/exiftool
Extract ~/Downloads/image-exiftool-12.25.tgz and copy the contents of ~/Downloads/Image-ExifTool-12.25 into the /usr/local/acs74/exiftool/ directory:
$ sudo tar -xvf ~/Downloads/image-exiftool-12.25.tgz --directory ~/Downloads/ $ sudo cp -R ~/Downloads/Image-ExifTool-12.25/* /usr/local/acs74/exiftool/
Export the exiftool directory to the PATH variable:
export PATH=$PATH:/usr/local/acs74/exiftool
Update the file permissions for /usr/local/acs74/exiftool directory:
$ sudo chgrp -R Alfresco /usr/local/acs74/exiftool $ sudo chmod -R 755 /usr/local/acs74/exiftool