![]() ![]() Furthermore, we can see a list and a table. We can see images, which need alternative text. The text uses links, which can guide the user to a website. We can see that this document contains information like headings, which present the structure of our document. It is time to start InDesign and open our example document. As a con, or at least a limitation, we have to assert that metadata is limited to one language. If the alternative text is updated, the update is automatically inherited by all documents referring to it. All images can be searched for using the description text in the metadata, which can be extremely useful when handling a large number of images. The alternative text can be reused in multiple documents. Whenever the file is copied or moved, the metadata travels with it. Pros and cons of metadata in imagesĪ pro is that the alternative text becomes part of your image files. From now on the alternative text will travel with the image file wherever we move or copy it. To apply and save our modification, we click the little checkmark in the lower right-hand corner of the Metadata pane. We type "Alice, the Rabbit and the Mad Hatter at the tea party". For our purpose it is sufficient to add a description to the image. InDesign will be able to access any of these attribute values to add their content as alternative text. For our needs, we will have a closer look at the IPTC Core attributes to edit the Headline, Description, or Title. Each set is defined by different standards or media types. Metadata attributes are collected in different sets, such as File Properties, IPTC Core, IPTC Extension, Camera EXIF data and so on. Bridge indicates editable metadata attribute fields with a little pen on the right-hand side. Other metadata add additional information to the file without modifying the image itself. Some metadata attribute values cannot be changed without modifying the image, such as file format, creation date or resolution. On the right-hand side we see the metadata of the file. The program now opens a preview of the image. We can use the file browser to select the file in which we want to add the alternative text. After starting Bridge, the program opens a file browser for us. For our example, we will use Adobe Bridge as it is included as part of Adobe's Creative Cloud program suite. There are many programs on the market that can modify the metadata of image files. So let's see how we can add an alternative text to an image file. When we copy an image, its alternative description will be copied as part of the image file as well. If the alternative description of the image is stored as part of the image, we can reuse this description in many other documents without retyping the alternative text. Alternative texts can be stored in the form of metadata inside the image file. Images in accessible PDFs require alternative texts. Preparationīefore we start using InDesign itself, we need to think for a moment about the images that we want to include in our InDesign documents. So let's see how we can create accessible PDFs with Adobe InDesign. It will not explain how to layout, design or print documents. This chapter focuses on how to improve the accessibility of your documents. We assume that you have basic knowledge of how to use InDesign. ![]() Please note that this is not an InDesign course. In fact, as PDF was invented by Adobe, it is the most powerful tool for creating accessible PDFs on the market. InDesign has native support for creating PDF documents. Its primary target groups are graphic designers and desktop publishers. The software can be used for print or digital publishing to create documents such as posters, brochures, magazines, newspapers, books, e-books and interactive PDFs. Adobe InDesign is a commercial desktop publishing software developed by Adobe Systems. ![]()
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