McDwiff documentation for Mac is also available as a PDF file.
McDwiff is a Universal Binary and requires Mac OS 10.6.6 or later.
You also need an active Internet connection to use McDwiff.
Just visit the Mac App Store and click "Buy App".
To open any DWF on your Mac, just double-click on it. Or choose File...Open.
To open a DWF on a remote Web site, chose File...Open Location and enter the entire URL (including http://) into the location field, then click Open.
Click and drag your mouse to pan. Roll your scroll wheel to zoom in and out. Cmd + * zooms to fit, Cmd + + zooms in, Cmd + - zooms out.
The Page Up and Page Down keys on your keyboard will advance you to the next and previous sheets.
Shift + Cmd + F enters Full Screen mode. Esc exits.
Use File...Export to convert the DWF file to a variety of common raster image formats including PNG, BMP, GIF, and TIF. Export one or all sheets. You can also control the magnification, to get bigger or smaller files.
Use File...Print to Print to paper or PDF. Use File...Page Setup to change print options.