A common question people have concerning photos on their iPhone is how can they remove photos
from their iPhone because they are running out of space.
They have a lot of photos and notice that they are running short of space on their iPhone
and they want to remove photos from their iPhone but they want to keep them in their
iCloud Photo Library.
They don't want to delete them forever.
They just don't want to have them with them in their pocket all the time.
So a typical setup that you may have is you may have, say, a Mac and an iPhone and you
turn on iCloud Photo Library.
This is great because say if you have ten thousand photos taking up 20 GB of space then
you'll find that all the photos are on both your devices.
However, you're starting to run out of space on your iPhone so you want to clear out some
of those photos.
Well, if you try to delete a photo, of course, it's going to give you warnings saying this
is going to delete the photo from everywhere.
Which isn't what you want.
So what's the solution.
The solution is just a simple switch.
You see if you go into Settings on your iPhone and then you go into Photos there's a switch
there between Optimize iPhone Storage and Download and Keep Originals.
Now if you have the checkmark next to Download and Keep Originals that means that every photo
you take on your iPhone is going to remain on your iPhone full resolution.
The full thing.
As a matter of fact any photo that you then take from a camera and put onto your Mac or
take from some other device like an iPad and store on your iCloud Photo Library is going
to download and be on your iPhone.
Your iPhone is going to have a complete library of all your photos at full high resolution.
But if you select Optimize iPhone Storage then what you're going to get is a mix.
This is what you want.
For instance, going back to this chart here you see you have 10,000 photos and they're
stored taking up the same amount of space on your Mac as on your iPhone.
But if you turn on Optimize iPhone Storage you'll get this.
You still get all your photos on your Mac but on your iPhone you may have something
like this where you have 2000 photos taking up 4 GB of space are full high resolution
and 8000 photos are only thumbnails.
In other words you can still see them in there but the full high resolution versions aren't
there anymore.
As a matter of fact the versions you see on your phone are much smaller, much more compressed,
so they only take up a fraction of the space.
So now instead of taking up 20 GB of space it's taking up 4+ GB of space.
It looks like you still have all 10,000 photos.
Now what happens when you want to view a photo.
Well when you go to view a photo, and it's not one of those that you have on your iPhone
that's already there as full resolution, then what you'll get is this thumbnail version
of it.
If you go to zoom in on it it's going to need the higher resolution version of it.
It's going to try to download it and you'll see a little circle there at the bottom fill
up as it downloads that photo.
Then once you have the full one you can see the full resolution.
Notice the trees here are much crisper now that I have the full resolution photo on my
iPhone.
So when it's set like this how does it decide what 2000 photos you've got full resolution
and what 8000 you don't.
These are just sample numbers.
The 2000 is going to represent your most recent photos.
The ones you've just taken and the ones you've just viewed.
So it's going to kind of use some sort of intelligence there to figure out which ones
to keep.
Say you want to view some photos.
Say you view an album and you look at ten photos.
It might change like this.
You get ten more photos, right, stored full resolution.
The rest are still not stored on the iPhone.
Now after time goes by you may find that it changes and you have even less stored.
You don't see a number there.
It's kind of doing this automatically in the background.
It identifies photos that you haven't looked at in a long time and that you need space
to store apps and other things so it's going to adjust that.
It's all going to happen automatically.
There's nothing you need to do.
It's going to look at how much storage space you've got left.
So someone with a ton of space, like 100 G available on their iPhone, may find that they
have a lot more full resolution versions already on their iPhone because there is space there
so it might as well store them.
Someone who is running short on space may find there's only a handful of photos there
that are full resolution and every time you go to look at an older photo it's going to
have to download it in order for you to zoom in.
Now if you look here just to see this in action here is my iPhone storage.
You can notice there that it shows under Photos that I've got 5.36 GB of photo storage.
That's really something because if you look at my Mac there's the Photo Library.
It's the same library.
This is my iCloud Photos Library and you see it's 109 GB.
That's the actual size with all the high resolution photographs.
So you can see it has saved me quite a bit of space because if I had turned on to have
the full resolution versions here then I'd have to store 109 GB on my iPhone.
Now you can also do the same thing on your Mac.
You can go into either System Preferences and iCloud or it's easier if you just go to
Photos Preferences and then iCloud you can turn on Optimize Mac Storage instead of Download
Originals to this Mac.
Why would you want to do this?
Well, I like the idea of keeping all my photos on my Desktop Mac so I have all my photos
here stored locally.
You don't have to.
All the high resolution photos are going to always be on iCloud.
So it is possible if you're short on storage on your Mac and your iPhone to have Optimize
turned on both and high resolution versions only on Apple servers.
But as it turns out I have two Macs.
I have a Desktop Mac and a laptop Mac.
My laptop Mac doesn't have a very big hard drive in it.
So I've turned this Optimize Mac Storage on my laptop Mac and the Photos Library there,
again, it's the same Photos Library.
It's shared because it's all part of my iCloud Photo Library.
You can see it's only taking up 24 GB of space.
I probably view a lot more photos on my laptop than I do on my phone.
There's a lot of extra space left over.
So it's storing more there.
If I was running out of space I bet you those 24 GB would go down closer to the 5 GB that
I have on my iPhone.