To reflow a PDF, simply follow the path Choose View > Zoom > Reflow in Adobe Acrobat. Using Acrobat Pro, it is also possible to check if the content or reading order of the tagged file contains inconsistencies. If a PDF is not tagged, Acrobat temporarily tags it before reflowing it. With this new feature, you can optimize your PDFs for reflow by tagging them yourself. Pages that contain both readable text and form or digital signatures fields do not reflow, while vertical text reflows horizontally. For now, this feature has some limitations: forms, comments, digital signature fields and page artifacts do not appear in the reflow view, meaning that in most cases only readable text can be reflowed. In recent years, we have become accustomed to reading ebooks or web pages that can reflow to adapt to the screen of the device used for reading or the browser viewport – this is in fact one of the accessibility requirements identified by the Web Content Accessibility Guidelines (WCAG) – but, until now, this has not been possible for PDFs.īut with this Adobe Acrobat Reader feature it is finally possible to reflow PDF documents in the reading app, making it easier to read them on a mobile device or using magnification or a screen magnifier on a standard monitor. These preferences allow the users to control how PDFs appear on the screen and how they are read by screen readers.Īmong all these options, there is one of particular interest: the possibility of reflowing a PDF to temporarily present it as a single column that is the width of the screen. The reflowable modeĪdobe Acrobat Reader provides several preferences options that help make the reading of PDFs more accessible for visually impaired and motion-impaired users. For example, screen reader users can rapidly scan the document jumping from one header to the following (or previous), or navigate tables and lists. The tags provide information about a document structure and the semantic roles of its elements, and this information is recognized by screen readers and delivered to the end users.Ī properly tagged PDF can thus become accessible to Assistive Technology users, whether they’re reading on desktops or using their smartphones and tablets. A tagged PDF has a logical structure that screen readers can use: we can compare this structure to the HTML hierarchy of DOM nodes, the hierarchical structure of Web pages. On the other hand, a PDF document can be accessible to blind readers if it is correctly tagged. It can’t adapt to the size of the screen: to read a PDF on a smartphone, it is almost inevitable to enlarge the page and span vertically and horizontally to read the text, which makes reading difficult for many. This format was originally created for printing, which is why it is characterized by a fixed layout. The PDF format is one of the most popular formats for exchanging and reading digital documents, however it sometimes presents several barriers when it comes to accessibility for dyslexics and visually impaired readers. We tested it and, in this article, we explain how it works and what problems it presents for accessibility. One of the latest features of Adobe Acrobat Reader allows to reflow PDFs to improve readability.
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