Help

This page explains how to use the accessibility options of this website, which screen readers you can use with it, and which free software you need to open documents published here.

Accessibility Help

Use the accessibility options provided by this website to control the screen display, for clear visibility and better readability. Select the Accessibility button at the top of any page to open the Accessibility Controls panel. It opens from the right side of the screen; close it with the close (×) button or the Esc key. Your choices are remembered in your browser until you change them or select Reset All.

Dark Contrast:

Applies a black background with suitable colours for the text, to improve readability. Select it again to return to the standard contrast.

Invert:

Reverses the colours of the page (light becomes dark). Photographs keep their normal colours.

Saturation:

Each selection changes the colour strength: low, high, grayscale (black and white), and off.

Text Size Increase / Text Size Decrease:

Makes the text larger or smaller than its standard size.

Highlight Links:

Shows all links with a yellow background and an outline, so they are easy to find.

Hide Images:

Hides pictures on the page, to reduce distraction.

Big Cursor:

Shows a large mouse pointer.

Reset All:

Turns off all the options above and returns to the standard text size and contrast.

Zooming the page

You can also zoom any page using your browser: press Ctrl and + to zoom in, Ctrl and - to zoom out, and Ctrl and 0 to return to normal size. On a Mac, use Cmd instead of Ctrl.

Screen Reader Access

The information on this website can be accessed with different screen readers, such as NVDA, JAWS, Narrator, VoiceOver and SuperNova. The following table lists information about different screen readers.

Viewing Information in Various File Formats

The information on this website is available in various formats, such as Portable Document Format (PDF), Word, Excel and HTML. To view the information properly, your computer needs the required software. For example, PDF reader software is needed to view PDF documents. If your system does not have this software, you can download it from the Internet free of cost. The table below lists the software needed to view information in various file formats.