Tag: accessibility

HTML srclang Attribute

Example A video with two subtitle tracks: <video width=”320″ height=”240″ controls> <source src=”forrest.mp4″ type=”video/mp4″>  <track src=”subtitles_en.vtt” kind=”subtitles” srclang=”en” label=”English”> <track src=”subtitles_no.vtt” kind=”subtitles” srclang=”no” label=”Norwegian”> </video> Definition and Usage The srclang attribute specifies the language of the track text data. This attribute is required if kind=”subtitles”. Tip: To view all available language codes, go to our Language code reference. Browser Support The numbers in the table specify the first browser version […]

PDF/X-, PDF/A-, and PDF/E-compliant files (Acrobat Pro)

Convert PDFs to PDF/X, PDF/A, or PDF/E You can validate PDF content against PDF/X, PDF/A, PDF/VT or PDF/E criteria. You can also save a copy of the PDF as PDF/X, PDF/A, or PDF/E, provided it complies with the specified requirements. For example, under certain circumstances, an ICC profile that describes the destination device is required […]

Creating accessible PDFs

Workflow for creating accessible PDFs At a high level, the process of creating accessible PDFs consists of a few basic stages: Consider accessibility before you convert a document to PDF. As needed, add fillable form fields and descriptions, and set the tab order. Add other accessibility features to the PDF. Tag the PDF. Evaluate the […]

Reading PDFs with reflow and accessibility features

Setting accessibility preferences Acrobat provides several preferences that help make the reading of PDFs more accessible for visually impaired and motion-impaired users. These preferences control how PDFs appear on the screen and how they are read by a screen reader. Most preferences related to accessibility are available through the Accessibility Setup Assistant, which provides onscreen instructions […]

Accessibility features in PDFs

A document or application is accessible if people with disabilities, such as mobility impairments, blindness, and low vision, can use it. Accessibility features in Acrobat, Acrobat Reader, and Adobe Portable Document Format (PDF) enable people with disabilities to use PDF documents, with or without screen readers, screen magnifiers, and braille printers. Making PDFs accessible tends to benefit all users. […]

Edit document structure with the Content and Tags panels (Acrobat Pro)

Correct reflow problems with the Content panel Use the Content panel to correct reflow problems in a PDF that can’t be corrected by using the Reading Order tool. Because you can damage a PDF by editing content objects, make sure that you’re familiar with PDF structure before you change anything. For comprehensive information about PDF structure, see […]

Reading Order tool for PDFs (Acrobat Pro)

Reading Order tool overview The Reading Order tool provides the easiest and quickest way to fix reading order and basic tagging problems. When you select the tool, a dialog box opens that lets you see overlay highlights that show the order of page content. Each highlighted region is numbered and highlighted with gray or colored blocks; the […]