Hi Carolyn,

The behavior of Preview under VoiceOver is closely tied to the version of Mac 
OS X that you are running, so because I am not running Snow Leopard, and also 
because some of the details of behavior can depend on both your application 
settings and your VoiceOver preference settings (especially cursor tracking 
and, under Snow Leopard, whether you're using QuickNav), I haven't tried to 
post instructions about using this app.

However, here are a few suggestions you can try:
1. Check what PDF Display mode is being used under your View Menu. (VO-M to the 
menu bar, press "V" to go to the View menu, arrow down to "PDF Display", then 
right arrow to the PDF Display submenu option settings.  Are you using "Single 
Page" or "Single Page Continuous"?  There can be reasons for using one or the 
other, depending on the source of your document, but for Apple User guides I'll 
usually use "Single Page Continuous" if I want to read straight through without 
having to use a key stroke to move to the next page.  This is true for both 
Preview and Skim, but only if you interact with the text page (VO-Shift-Down 
arrow), and use VO-A to start and resume your reading.  I can't stress this 
enough.  Interacting is not instinctive when you come over from Windows. The 
deceptive point here is that VoiceOver will start reading even if you don't 
take the time to interact once you're in the text area.  Under Tiger (OS X 
10.4), if I use Travis Siegel's Softcon PDF Viewer (since there's no "Single 
Page Continuous" option under Preview with Tiger), you can read books with 
VoiceOver and only discover, a hundred or more pages into the PDF file, that 
because you forgot to interact when you started reading your position in the 
document is lost when you stop/pause.

2. Crucial points: if you first interact with the text area of Preview or Skim 
when reading your PDF document, you can move around with your VO-arrow keys 
(e.g., VO-Up arrow to re-read a previous line, VO-Left or Right arrow to review 
words, VO-Down arrow to skip down several lines on the page), and then resume 
reading from the current location with VO-A.

In Skim, I can execute a "Find" with Command-F (either first stopping VoiceOver 
reading by pressing the Control key, or not), and use VO-A to resume reading at 
the next found location, etc. I can even command-tab away from the application 
and return to the place I left off reading if I press VO-A again.  (In Preview 
there's a bug under Leopard that requires you to set a hot spot to get back to 
the place you left off if you switch applications.  I think you also had to do 
this for Skim in earlier versions of Leopard. You need to ignore what VoiceOver 
starts reading and use VO-A to resume your location in Skim.  This works for 
Mac OS X 10.5.8 and above in Leopard, I think, but don't quote me on this. And 
I'm sure I don't have the latest version of Skim.)

3. You might find it easier to hide the Preview toolbar.  This shouldn't affect 
performance either way -- but you might find it simpler to navigate between the 
sidebar, where you are presumably reading a Table of Contents and selecting a 
section in the Apple User's Manual, and the text area, if the toolbar is hidden.

I'm not sure how useful these comments will be to you under Snow Leopard.  
Another difficulty is that I used to be able to use the "VoiceOver Getting 
Started Guide" as an example PDF document for illustration purposes.  Since 
there is no corresponding Snow Leopard PDF guide that I can point people to, it 
gets more difficult to give examples based on an actual guide.  

HTH

Cheers,

Esther

On February 11, 2010, Carolyn wrote:
>

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