As great as modern technology is, computers are not yet able to look inside media files to describe them. Although there is some advancement, such as facial recognition technology, we still have to rely on metadata to describe files. In this chapter, we will learn about the major types of metadata, how it can be inserted in files, and how it can be extracted and used for content management in TYPO3.
In this chapter, we will cover:
Inserting metadata into images
Extracting metadata from images
Inserting metadata into audio
Extracting metadata from audio
Extracting metadata from PDF