How do I add exif data to an image?

Question

On our site, we get a large amount of photos uploaded from various sources.

In order to keep the file sizes down, we strip all exif data from the source using mogrify:

mogrify -strip image.jpg 

What we'd like to be able to do is to insert some basic exif data (Copyright Initrode, etc) back onto this new "clean" image, but I can't seem to find anything in the docs that would achieve this.

Has anybody any experience of doing this?

If it can't be done through imagemagick, a PHP-based solution would be the next best thing!

Thanks.

Answer 1

You can save a large amount of space, especially if you have a large number of images..

Add the following to text.txt (format of the IPTC tags taken from here):

2#110#Credit="My Company" 2#05#Object Name="THE_OBJECT_NAME" 2#55#Date Created="2011-02-03 12:45" 2#80#By-line="BY-LINE?" 2#110#Credit="The CREDIT" 2#115#Source="SOURCE" 2#116#Copyright Notice="THE COPYRIGHT" 2#118#Contact="THE CONTACT" 2#120#Caption="AKA Title" 

Strip all existing exif data from the image

mogrify -strip image.jpg 

Add the credit to your image

mogrify -profile 8BIMTEXT:text.txt image.jpg 

Answer 2

Exiftool looks like it would be an exact match for you.

I haven't tried it but I'm now tempted to go and fix all my honeymoon photos which are marked 01/01/2074 because I forgot to reset the date after the batteries died.