3 <refname>PHP Exif Library</refname>
4 <refpurpose>Overview of PEL</refpurpose>
10 <firstname>Martin</firstname>
11 <surname>Geisler</surname>
13 {@link mailto:mgeisler@users.sourceforge.net
14 mgeisler@users.sourceforge.net}
19 <refsect1 id="{@id intro}">
20 <title>What is the PHP Exif Library?</title>
22 <para>The PHP Exif Library (called PEL for short) is a library
23 written in {@link http://www.php.net/ PHP} which will allow you to
24 manipulate {@link http://www.exif.org/ Exif} data. This is the
25 data that digital cameras place in their images, such as the date
26 and time, shutter speed, ISO value and so on.</para>
28 <para>PEL makes it easy to parse Exif data stored in JPEG and TIFF
29 images. Once an image has been loaded, the data can be changed at
30 will by manipulating the objects representing the data. The
31 objects can be saved again to produce a valid image.</para>
33 <para>This documentation contains:</para>
37 <para>Full details on all classes and methods in PEL. Begin
38 with {@link PelJpeg}.</para>
42 <para>Instructions on {@tutorial using.pkg}.</para>
46 <para>A list of {@tutorial faq.pkg}.</para>
52 <para>Please note that PEL <emphasis>requires</emphasis> PHP
53 version 5. It will not run on PHP 4. See
54 {@tutorial faq.pkg#why-php5 the FAQ} for more