Hi, this is Gary with MacMost.com.
On this episode let me show you the Loupe tool in Preview.
So in Preview there are many different ways to magnify an image that you're looking at.
I'm going to double click on an image here and it is going to open up in Preview.
I'm going to use the magnification buttons here at the top to zoom in.
I can now scroll up and down, move around, to see what's in the image.
Also for viewing I can go to Tools, Show Magnifier and I get this circle here that I can move
around and magnify any part of the image that I want.
But both of these tools are just for you viewing the image.
They don't create any kind of permanent change to the image.
They're just a kind of temporary viewing thing.
There is another tool that will actually allow you to annotate the image with zoomed in portions.
This is called the Loupe tool.
It's part of Annotation.
So go to the Tools for Markup right here and turn that on.
Then you see all the markup tools here including texts, and shapes, and different things that
you can add to the image.
Under Shapes there's this loupe icon here.
It's kind of hard to tell what that is but once you use it you can see that the circle
loupe appears.
It's not following the cursor but it is magnifying this section.
I can click and drag it anywhere I want to magnify an area.
Then I can adjust the size of the loupe by dragging this blue dot here and I can adjust
the magnification by dragging this green dot along the edge.
So now I've magnified this section of the image.
One interesting thing is that you can add multiple loupe annotations.
So I'm going to go and do it again and I get a second loupe.
Now I can use this to magnify something else on the image.
You can have these two actually move and overlap each other.
Actually even double magnify the things under the loupe.
If you Control click you can change the positions.
So I can send this loupe behind the other loupe or in front of the other loupe.
I can also delete a loupe if I've got it selected.
That means I've got the blue and the green dots there, where I don't have them here.
I can actually hit the Delete key and it will remove that.
Now it's important to realize that these are real annotations just like if you add a piece
of text or shape or an arrow or something on the image.
So if I go and Export this or just simply save it I will get
an image that has those imbedded in it.
So now I look at this one here and you can see these aren't loupes anymore, not annotations
ones anyway.
These are permanent parts of the image and I can actually view this image in anything.
I can send it in an email.
Whatever I want it's going to look like this.
Whereas here, these are actually still loupes that can be moved and manipulated and changed
and deleted.
Now this not only works on images in Preview but you can do it on PDFs as well.
So here's my PDF of keyboard shortcuts.
I can go and do the same thing here.
Turn on Annotations tools, add a loupe, and you can see here it magnifies what's underneath
there.
So if there is something in this document I wanted to point out I can do it and magnify
it as I want.
The great thing, of course, is that a PDF is vector based so as you magnify it, it is
still going to be pretty smooth underneath there.
So you can add these to PDFs to help you point out things in documents if you collaborating
with somebody.
Likewise you can do it with images as well or just use them to make your images more
interesting before you post them on social media or send them to friends.