XMP SPECIFICATION PART 3 STORAGE IN FILES Copyright © 2008 Adobe Systems Incorporated. All rights reserved. Extensible Metadata Platform (XMP) Specification: Part 3, Storage in Files NOTICE: All information contained herein is the property of Adobe Systems Incorporated. No part of this publication (whether in hardcopy or electronic form) may be reproduced or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written consent of Adobe Systems Incorporated. Adobe, the Adobe logo, Acrobat, Acrobat Distiller, Flash, FrameMaker, InDesign, Illustrator, Photoshop, PostScript, and XMP are either registered trademarks or trademarks of Adobe Systems Incorporated in the United States and/or other countries. MS-DOS, Windows, and Windows NT are either registered trademarks or trademarks of Microsoft Corporation in the United States and/or other countries. Apple, Macintosh, Mac OS and QuickTime are trademarks of Apple Computer, Inc., registered in the United States and other countries. UNIX is a trademark in the United States and other countries, licensed exclusively through X/Open Company, Ltd. All other trademarks are the property of their respective owners. This publication and the information herein is furnished AS IS, is subject to change without notice, and should not be construed as a commitment by Adobe Systems Incorporated. Adobe Systems Incorporated assumes no responsibility or liability for any errors or inaccuracies, makes no warranty of any kind (express, implied, or statutory) with respect to this publication, and expressly disclaims any and all warranties of merchantability, fitness for particular purposes, and noninfringement of third party rights. Contents Preface . 6 About this document . 6 How this document is organized . 6 Conventions used in this document . 7 Where to go for more information . 7 1 Introduction . 8 Embedding metadata in files . 8 External storage of metadata . 8 Native metadata . 9 2 XMP Packets . 10 The XMP packet format . 10 Header . 11 XMP data . 12 Padding . 12 Trailer . 12 Scanning files for XMP packets . 13 Scanning hints . 13 3 Embedding XMP Metadata in Application Files . 15 Image formats . 15 DNG (Digital Negative) . 16 GIF (Graphic Interchange Format) . 16 JPEG . 18 JPEG 2000 . 21 PNG (Portable Network Graphics) . 22 TIFF (Tagged Image File Format) . 23 Dynamic media formats . 26 ASF (WMA, WMV) . 26 AVI . 28 FLV (Flash Video) . 29 MOV (QuickTime) . 30 MP3 . 31 MPEG-2 . 31 MPEG-4 . 31 SWF (Flash) . 32 WAV . 33 Video package formats . 33 AVCHD . 34 P2 . 34 Sony HDV (High Definition Video) . 35 3 Contents 4 XDCAM EX . 36 XDCAM FAM . 36 XDCAM SAM . 37 Adobe application formats . 37 AI (Adobe Illustrator) . 38 INDD, INDT (Adobe InDesign) . 38 PSD (Adobe Photoshop) . 42 Markup formats . ..