Font size, font-embedding and color contrast will also need to be manually checked. Once the document is properly tagged and remediated, the document language and metadata settings need to be properly defined.
TAGR PDF PDF
Without careful, knowledgeable human inspection, testing and corrective actions (this process is called PDF remediation) the file will not meet the WCAG standards. It is possible to automatically add tags to a PDF using Adobe Acrobat, but the result is never satisfactory. To do this effectively requires a combination of design experience and knowledge of PDF tag structures. The user must look at the existing content in a document and identify which tags to use to represent the existing content. This is often the most overwhelming part for someone who has been tasked to “make a document accessible”.
TAGR PDF SOFTWARE
The PDF/UA standard ensures that assistive technologies and screen readers can correctly access the content within you documents, no matter which software tool you used to create it. Tagged PDF files that conform with the PDF/UA standard provide standardization of content. These days, content can be produced on any number of different authoring tools.
TAGR PDF FREE
Need to know if your existing PDF documents are accessible? Get a Free PDF Accessibility Test. An alt-text description provides a text description of the non-text element, so that users of assistive technologies receive the same relevant information that a sighted person receives. One attribute stored within a figure tag is the alt-text attribute (alternative text description). Images (figures)įigure tags include all kinds of non-text elements such as images, diagrams, infographics, logos, graphs, and charts. The more complex a table is, the more significant the challenge to tag it correctly. Proper PDF tag structure makes this possible by identifying essential information including the number of rows and columns as well as column (or row) headers, and which heading each data entry corresponds to. A table of data presents a complex more task. Reading plain text is an easy task for assistive technologies. The outcome is that the content becomes useless to the user. In worst cases, the content would be completely unable to be read. For documents without this logical structure, the best case would be that assistive technologies would guess at the correct order that the content should be presented in. The tag order within the tag tree will determine the reading order of the document. Correct reading orderĪn accessible PDF provides the instructions to the assistive technologies such as screen readers to read the content properly and in the correct order. PDFs with correctly tagged headings and subheadings provide a blueprint to the document content for those using assistive technology, similar the visual cues that a sighted person has when browsing documents. Imagine reading a newspaper with no headlines? How would you choose which story to read? You would be stuck reading entire paragraphs of text before you could decide if the article was something you were interested in. PDF Tags also provide efficient document navigation. PDF tags also allows the content to reflow seamlessly on devices with smaller screens, like smartphones and tablets. Some examples are –Paragraphs, Headings, Lists, Tables, Figures, etc.Īdding PDF tags does not change the visual appearance of the document it provides invisible layer of formatting within the document that works with screen readers. Each document will have different tags depending on its content. The tag tree is comprised of the different tag types used within the document. The tag tree forms the logical structure of the document (reading order). They also arrange the document content into a hierarchical architecture (or a “tag tree”). Each tag identifies the type of content and stores some attributes about it.
When a tagged PDF is created, each page element in the document is “tagged”. PDF tags are the key to accessing a PDF document’s content with assistive technologies such as screen readers. Click to share on LinkedIn (Opens in new window).Click to share on Twitter (Opens in new window).Click to share on Facebook (Opens in new window).
0 kommentar(er)
