SET EXIF DATA MAC PDF

Quick summary is that HEIC, JPEG, PNG, TIFF can contain easily read predefined data about images. Anyone can access the information and it may includes things you do not wish to reveal, such as the location where the photo was taken. This has led to alternative metadata formats such as XMP which is an extensible XML markup developed by Adobe.Īnother potential issue with EXIF data is that there is no security or encryption. But a weakness of EXIF is that you cannot alter or add your own tags to suit your workflow. It works very well if the data you are interested in matches the Exif specification. What are the advantages and disadvantages of EXIF? In a later article we will look in more detail at how you can read EXIF data. Here is the obligatory cat picture on my Mac with the metadata shown in Preview and Finder on my Mac. There is a nice list of EXIF tags here How can I view EXIF?Ī big advantage of EXIF data is that it can be easily viewed without specialist tools in many applications on Mac, Linux and Windows and mobile. It was originally developed for the Tiff file format and consists of a set of predefined Exif tags (such as Image width, height, copyright, location, etc) which take a predefined value (Copyright is a String). It was first proposed in 1995 and is currently at version 2.32 It stands for Exchangeable image file format and is found in JPEG and HEIC, PNG and Tiff image file formats and wav sound files.

Data you can set includes document name, artist, copyright, date/time, latitude and longitude, and keywords. You can add and increment EXIF dates, times and sequence numbers. Use a date from the Finder or retrieve the date/time from its file name, if present. This has the advantage of simplicity and convenience. SetEXIFData writes the most wanted EXIF data in an image- or movie-file. What is EXIF metadata?ĮXIF is a common International standard format for storing metadata as part of an image. He has an MA in Medieval History and a passion for reading.

SET EXIF DATA MAC PDF

Mark Stephens Mark has been working with Java and PDF since 1999 and is a big NetBeans fan.

Set exif data mac