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@@ -1,5 +1,3 @@ -// $Id: - README file for the Exif Drupal module. @@ -21,43 +19,58 @@ The metadata tags defined in the Exif standard cover a broad spectrum including camera. * Descriptions and copyright information. -Administrators can choose via CCK fields which Exif information are read. +Administrators can choose what Exif tags they want to display, and control the +order of appearance. At this time, this module supports Exif information only with JPEG files. [1] Reference: http://en.wikipedia.org/wiki/Exchangeable_image_file_format -Requirements and Constraints -**************************** +Requirements +************ + +This module requires the PHP Exif Library (PEL), http://sourceforge.net/projects/pel + +Your PHP must be compiled in with --enable-exif. Windows users must also have +the mbstring extension enabled. + +PEL itself requires PHP version 5. +It does NOT work under PHP 4. -CCK with at least textfields enabled. -If you use a module like imagefield. It's only possible to have one image per node!! -If there are more than one images per node, only the exif data of one image is read! +This module has been tested with PEL version 0.91. -IMPORTANT: If you are using imagefield, do not call the content type "image"!!! Image -is reserved for using the Image module. If you call your content type image and you are -using imagefield, the module is not going to work. +And of course, this module also requires Drupal (version 5.0). This module won't +do anything without the Image module (http://drupal.org/project/image), as Exif +data is displayed only on image nodes. -Usage +Installation ************ -After installing it you can go to your CCK nodetype. It supports both the image module -aswell as the imagefield module. Let's say you have an content type "photo". Go to your -cck settings and add a new field. For the name of the field you need to follow the following -naming conventions: +1. Extract the 'exif' module directory, including all its subdirectories, into + your Drupal modules directory. + +2. Download and extract the PEL archive into the modules/exif/pel + directory. When you're finished the directory structure should look something + like: -Example: -#1 field_exif_exposuretime -> this would read the ExposureTime of the image and save it -in this field. + drupal/ + sites/ + example.com/ + modules/ + exif/ + pel/ + README + INSTALL + Pel.php + PelJpeg.php + ... + +3. Enable the Exif module on your site's administer > site building > modules + page. A database table will automagically be created at this point. -#2 field_ifd0_datetime -> this would read the date time (2009:01:23 08:52:43) of the image. -as a field_type you can take for example a normal textfield, but also a date field would be -possible. +4. Go to administer > site configuration > exif settings, and select what Exif + tags to display. -General rule is: [field]_[section]_[name] -Under admin/settings/exif you can see a list of all possible information. These informations -are taken from the image "sample.jpg". I may not contain all tags available. If you are looking -for some specific tags you can just replace this image with your own image.
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