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0001 .. meta:: 0002 :description: digiKam Right Sidebar Metadata View 0003 :keywords: digiKam, documentation, user manual, photo management, open source, free, learn, easy, sidebar, metadata, exif, iptc, xmp, makernotes, exiftool 0004 0005 .. metadata-placeholder 0006 0007 :authors: - digiKam Team 0008 0009 :license: see Credits and License page for details (https://docs.digikam.org/en/credits_license.html) 0010 0011 .. _metadata_view: 0012 0013 Metadata View 0014 ============= 0015 0016 .. contents:: 0017 0018 Metadata are data about the images or files, like technical data of camera setting during shooting, author info, copyrights, keywords, captions, and coordinates of location. 0019 0020 The metadata sidebar is composed of five sub tabs **Exif**, **Makernote**, **IPTC**, **XMP**, and **ExifTool** Metadata, as shown in these four tabs, can be modified and enhanced in a number of ways elsewhere: 0021 0022 - With the :ref:`Camera interface <camera_import>`. 0023 0024 - The :ref:`Metadata Editor <metadata_editor>`. 0025 0026 - The :ref:`Geolocation tool <geoeditor_overview>`. 0027 0028 - Copying :ref:`database information to files metadata <maintenance_metadata>`. 0029 0030 - Copying :ref:`file's metadata to the database <maintenance_database>`. 0031 0032 .. figure:: images/sidebar_metadataexif.webp 0033 :alt: 0034 :align: center 0035 0036 The Metadata View From Right Sidebar Displaying Exif Information 0037 0038 For each metadata section, a bar is available on the top of view with: 0039 0040 - A menu from the left button to use different levels to display contents through: 0041 0042 - **No Filter**: display all markers. 0043 - **Photograph**: display only more important marker for photograph. 0044 - **Custom**: a customized selection of marker set in configuration dialog (see Settings entry). 0045 0046 - A really nice feature is the live search box on the middle end of bar. As you type in a keyword, the metadata on top of it will be successively filtered until you narrow down and what you are looking for. It is a quick way of accessing specific information. 0047 0048 - A menu from the right button to export contents: 0049 0050 - **Copy to clipboard**: share text information in memory to copy and paste in other application. 0051 - **Save to file**: save chunk of information in data file. 0052 - **Print data**: export information in PDF file or to your printer. 0053 0054 .. note:: 0055 0056 The metadata view preserve the filter settings depending of the file selected. This allow to compare quickly metadata contents between items to identify the differences. 0057 0058 .. _exif_tags: 0059 0060 Exif Tags 0061 ~~~~~~~~~ 0062 0063 Exif stands for `Exchangeable image file format <https://en.wikipedia.org/wiki/Exif>`_. It was designed specifically for digital cameras. It allows a large amount of information about the photograph to be stored. This information describes the camera which took the image along with the settings (including date and time) in use when the image was taken. An in-line thumbnail can be included. 0064 0065 Exif format contains a set of marker sections named *Image File Directories* (IFD). The sections likely to be found in a normal Exif file are as follows: 0066 0067 - **Image Information**: contains general information about the image. 0068 0069 - **Embedded Thumbnail**: contains information about the embedded thumbnail image. 0070 0071 - **Photograph Information**: contains extended information about the photograph. 0072 0073 - **Interoperability**: contains information to support interoperability between different Exif implementations. 0074 0075 You can review embedded Exif information for the selected image from the first sidebar tab. The Exif Viewer is purely informational: nothing you do with it will cause any change to the Exif sections. If there are more entries than space available, just scroll down with the mouse wheel. 0076 0077 Some vendors add additional Exif sections, such as Canon, Fujifilm, Nikon, Minolta, and Sigma. These sections contain vendor and model specific notes. These will be displayed on the **Makernote** tab. 0078 0079 .. _markernotes_tags: 0080 0081 Makernote Tags 0082 ~~~~~~~~~~~~~~ 0083 0084 The Exif standard defines a Makernote tag, which allows camera manufacturers to place any custom format metadata in the file. This is used increasingly by camera manufacturers to store a myriad of camera settings not listed in the Exif standard, such as shooting modes, post-processing settings, serial number, focusing modes, etc. but this tag format is proprietary and manufacturer specific. 0085 0086 You can review embedded Makernote information for the selected image in this sidebar tab. The Makernote Viewer is purely informational: nothing you do with it will cause any change to the Makernote sections. 0087 0088 .. figure:: images/sidebar_metadatamakernotes.webp 0089 :alt: 0090 :align: center 0091 0092 The Metadata View From Right Sidebar Displaying Markernote Information 0093 0094 .. _iptc_tags: 0095 0096 IPTC Tags 0097 ~~~~~~~~~ 0098 0099 The `International Press Telecommunications Council <https://www.iptc.org>`_, is a consortium of the world's major news agencies and news industry vendors. It develops and maintains technical standards for improved news exchange that are used by virtually every major news organization in the world. 0100 0101 The IPTC was established in 1965 by a group of news organizations to safeguard the telecommunications interests of the world's press. Since the late 1970s IPTC's activities have primarily focused on developing and publishing industry standards for the interchange of news data. 0102 0103 In particular, the IPTC defined a set of metadata attributes that can be applied to images. These were defined originally in 1979, and revised significantly in 1991 to be the *Information Interchange Model* (IIM), but the concept really advanced in 1994 when Adobe defined a specification for actually embedding the metadata into digital image files - known as *IPTC headers*. 0104 0105 You can review embedded IPTC information for the selected image in this sidebar tab. The IPTC Viewer is purely informational: nothing you do with it will cause any change to the IPTC sections. 0106 0107 .. figure:: images/sidebar_metadataiptc.webp 0108 :alt: 0109 :align: center 0110 0111 The Metadata View From Right Sidebar Displaying IPTC Information 0112 0113 .. _xmp_tags: 0114 0115 XMP Tags 0116 ~~~~~~~~ 0117 0118 The `Extensible Metadata Platform <https://en.wikipedia.org/wiki/Extensible_Metadata_Platform>`_ (XMP) is an ISO standard, originally created by Adobe Systems Inc., for the creation, processing and interchange of standardized and custom metadata for digital documents and data sets. 0119 0120 XMP standardizes a data model, a serialization format and core properties for the definition and processing of extensible metadata. It also provides guidelines for embedding XMP information into popular image, video and document file formats, without breaking their readability by applications that do not support XMP. 0121 0122 Although metadata can alternatively be stored in a sidecar file, embedding metadata avoids problems that occur when metadata is stored separately. 0123 0124 XMP is given to replace IPTC as well. 0125 0126 You can review embedded XMP information for the selected image in this sidebar tab. The XMP Viewer is purely informational: nothing you do with it will cause any change to the XMP sections. 0127 0128 .. figure:: images/sidebar_metadataxmp.webp 0129 :alt: 0130 :align: center 0131 0132 The Metadata View From Right Sidebar Displaying XMP Information 0133 0134 .. _exiftool_view: 0135 0136 ExifTool View 0137 ~~~~~~~~~~~~~ 0138 0139 `ExifTool <https://en.wikipedia.org/wiki/ExifTool>`_ is a free and open-source program for reading, writing, and manipulating image, audio, video, and PDF metadata. It is platform independent as a command-line Perl application. Prior, digiKam use Exiv2 library to handle metadata, but it can use also ExifTool as an alternative to incorporate different types of digital workflows not supported by Exiv2. 0140 0141 ExifTool supports many types of metadata including Exif, IPTC, XMP, JFIF, GeoTIFF, ICC Profile, Photoshop IRB, FlashPix, AFCP and ID3, as well as the manufacturer-specific metadata formats of many digital cameras. 0142 0143 You can review information decoded by ExifTool for the selected image in this sidebar tab. The ExifTool Viewer is purely informational: nothing you do with it will cause any change to the information. 0144 0145 .. figure:: images/sidebar_metadataexiftool.webp 0146 :alt: 0147 :align: center 0148 0149 The Metadata View From Right Sidebar Displaying ExifTool Information