Keywords: JPEG Metadata Application Segments APP0 APP1 APP2 APP3 APP12 APP13 APP14 EXIF DCF XMP RDF Photoshop IRB IPTC DCMI JFIF

# The PHP JPEG Metadata Toolkit - Documentation

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## Introduction

The PHP JPEG Metadata Toolkit is a library of functions which allows manipulation of many types of metadata that reside in a JPEG image file.

The metadata that can be accessed by this library include:

EXIF, DCF & TIFF/EP - including makernotes | Contains Digital Camera Settings. Can contain a thumbnail.
XMP, RDF & Dublin Core, including multiple language support | Can contain Digital camera settings and text headings/captions.
Photoshop IRB & IPTC-NAA IIM | Contains Photoshop settings and can contain text headings/captions. Can contain a thumbnail.
Picture Info | Contains Digital Camera Settings for older cameras
JFIF & JFIF Extension | Contains limited info about the image and can contain a thumbnail
Intrinsic JPEG Values | Contains limited info configuration of the image

Other features

- Has been tested with over 450 popular digital cameras
- Provides access to lots of metadata for which php has no built in support
- Works with many files that have corrupted metadata.
- Customisable look of the HTML output via style sheets

### Requirements

The toolkit requires PHP 4 or higher - Has been tested with PHP 4.3.7 and 4.3.8