Click on any phrase to play the video from that point.
[male speaker] If you want to be able to compare the differences
between two versions of the same PDF file,
go to the Document menu and choose Compare Documents in Acrobat 9.
This will bring up the Compare Documents dialog box.
From here go ahead and choose the older and newer versions of that document.
Here I have a presentation that's a PDF.
This is the older version.
We can select the page ranges that we want it to run the comparison against.
And at the bottom we need to tell Acrobat 9 what kind of document this is,
whether it's a report or a spreadsheet or a layout,
presentations or illustrations, or a scanned document.
I'm going to choose the presentation decks option here,
which has been selected automatically,
and this will determine the kind of comparisons that will be made.
I will also choose the newer version here.
I click OK.
Acrobat 9 will run through the document,
and the first thing it presents to me is a report
telling me that differences exist between the documents.
And on the left-hand side you'll see the new Compare panel.
So let's click on the link here to go to the first change, which is on page 1.
Right away we can see on the Compare panel at the top is the newer version
and at the bottom is the older version.
And highlighted right here is where this change occurred,
and it noticed that the text had been replaced.
And by hovering over it or by clicking to see the pop-up,
it will show me the old text and the new text.
Let's go ahead and close that, and let's go to the next page.
Here we can see another change.
Let's go ahead and hover over that.
In this case you can see how that number had changed from 400,000 to 460,000,
so I'll need to fix that.
Let's go to the next page here, and we'll see a few more changes in text,
but this blue highlighted area shows that this line was actually inserted.
And if you look carefully in the bottom left in the Compare panel,
you can see how that line wasn't in the original version right here.
As you can see, if I hover this and then click,
Acrobat will open the older document in the new window for me to take a look at.
Now let's go back to this page right here and look at the top left,
and you will see this gray box.
If I hover over that with my mouse, Acrobat 9 will tell me that this page was moved
from page 7 of the old document.
So choosing the Presentations option earlier on in that Compare Documents dialog box
will compare which pages have moved around within the files.
Let's continue through the file here.
Here we can see that this particular chart has been highlighted as a whole.
This means that it has been changed in some way.
To determine what has actually changed in the graphic, go ahead and just click,
and a pop-up will appear that will show you the older version of the image
and any change in pixels that Acrobat 9 had detected.
In this case you can see that a stroke was applied to the pie charts.
And if you look carefully, the color has changed from the older to newer version,
and that's been highlighted on the right-hand side of that pop-up there.
So Acrobat 9 Compare Documents will also do pixel by pixel recognition.
Let's continue through the document.
Here we can see another chart, and only a portion of this has been highlighted,
so again, let's click.
And we can see here in this case that the older version of the chart
had a shorter bar right there.
You can see the difference on the right-hand side of that pop-up.
And if we continue through the file, we can see that there are additional changes
that were made between the two versions.
If I wished to at any time, I could actually see the two documents side by side
rather than in these small thumbnails in the Compare panel.
If I go to the Compare panel pop-up menu,
I can go ahead and choose Show Documents Side by Side,
or I could say Show Documents Tiled if I wished to.
If I choose side by side, it will open up the older and the newer version
and synchronize the pages.
So as I go through those, irrespective of whether the pages have been moved around,
I can see the content side by side.
All right.
Let's close the older one here and go back to the Compare panel
and take a look at some of the options.
So if I click on Show Options on the Compare panel,
I can tell Acrobat what kind of changes I want it to detect.
It could be text, it could be images where it would compare pixels,
annotations in formatting,
and any headers or footers or backgrounds that may be in the PDF file.
I can choose a color scheme for the legends that you see,
and I can control the opacity of the highlighting
to make it easier to see the content.
And that is Compare Documents.
