A list of terms used within Piwigo.

Album : A set of photos. An album can include sub-albums. A photo can belong to several albums.

Album Thumbnail : This is the photo that is shown for a particular album on the page listing all albums.

Association : A photo can be associated to one or several albums. A photo associated to no album is called an “orphan” photo.

Batch Manager : Batch Manager is a tool to let you change the information for photos in bulk, many photos at a time. For example you could add a new tag to a group of photos you recently uploaded.

Breadcrumb : This is a navigation that shows you the hierarchy of the page you are looking at. For example “Home / animals / our-big-cat /” Where animals is the name of an album and our-big-cat is the name of the photo.

Caddie : This is like a basket that an administrator can put photos into while browsing. Then the admin can go to the Batch Manager and modify all the photos in the caddie. You can also easily see the contents of the caddie by going to Admin>Photos>Caddie

Config : The config file (or “local configuration”) allows you to set options that are not available through the regular Configuration area.

Created on : This is usually the original date the photo was created. It is taken from the EXIF data but can be changed once it is uploaded.

CSS : Description language, used to describe graphic parameters of Piwigo's HTML pages. For example, link color.

EXIF : Characteristics of a photo such as make and model of camera, AperatureFNumber, etc. It is a type of metadata, written by the camera.

Gallery : front-office of any Piwigo installation. The back-office is the administration panel.

Groups: Groups can be created and users put into groups. These groups can then be given permissions to do or view things across the gallery.

Guest : Anyone who visits the website when not logged in is using the “guest” user. The guest user cannot be deleted and it is created automatically upon installation. You can block guest users using the local config and $conf['guest_access'] setting.

Keyword : same as tag. Only used if you activate plugin “Tags to Keywords”.

Metadata : includes EXIF and IPTC. Learn more

MySQL : Database engine. This is where Piwigo saves data like photo description or user comments. Piwigo also works with MariaDB database engine (which is a fork of MySQL).

Numeric identifier : Every photo and album has a unique numeric identifier. This is assigned automatically by the software. This identifier is part of the URL of the page of the photo and is made obvious on the edit page of the photo (administration panel)

PHP : Programming language used by Piwigo.

Physical association : (only when using synchronization to add photos) after synchronization, each photo is associated with its physical album.

Physical album : An album that is linked to a directory in the filesystem, see “Synchronization”.

Plugin : a means of extending the gallery by adding functionality without modifying Piwigo core code.

Private album : An album with restricted access. When an admin marks an album as private, you must give explicit permissions for each user or group to access that album.

Properties page : This is the page in the Admin area where you can change all of the details of a photo.

Related Tags menu item : The tags listed under the Related Tags menu are usually tags that are found in the images on that page. If the listing includes tags with a + sign in front of them, clicking on that tag will narrow the images to only those with that tag and any other tags previously selected.

Release : Equivalent to ”version”. See more on

Status : the role of the user within the gallery. Learn more

Style : see “Theme”.

Synchronization : During synchronization, Piwigo will scan folders and files under the ”galleries” directory on your server and create corresponding albums and photos in the database. You will need to add them to your server using FTP software.

Tag : A tag is a word associated with a photos. Adding tags is a way to give meaning to photos. It is identical to keyword.

Template : HTML pages models. Known as *.tpl files. PHP read templates files and convert them in pure HTML language. Compared to HTML files, template files may include loops or conditions.

Template extension : alternative template files that change the functionality of the gallery and theme.

Theme : The look and feel of the gallery. Everything related to the display is in the theme. It includes CSS stylesheets, icons, template files.

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about/glossary.txt · Last modified: 2020/10/27 11:57 by plg
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