How do I remove duplicate photos in Photos?

I don't know about zfJames, but Photos has duplicated nearly ALL of my photos on my new MacAir program. (WHY?????) I'm an artist and take LOTS of photos. Seriously?? To go through and delete manually would take me a week. That just ***** especially when you go to delete a group and it asks every time 'are you sure...blah blah blah". Hope someone can make a better suggestion. Apple suggests that the 3rd party programs may damage your photo library. What do you make of that, please? Thanks in advance!

Not without knowing what you have and what you are doing - that is one of the problems with ThreadJacking someone else's solved thread - you have a different setup, different workflows and a different problem

Usually duplicates are because you have imported the same photo multiple times - it can be due to HDR and other reasons

LN

Destroy your Photo library and possible your Mac system softare - Is that Bad for you - it is for most people

MacPaw makes and sells it unethically and aggressively - nothing they make should ever be used on your mac and if you have it you need to get rid of it ASAP -- CleanMyMac and Gemini are nearly as bad as MacKeeper -- Do not install MacKeeper

The "why" might be the same reason I just found out on my MAC. With my configuration, The Photo Stream imports photos, automatically, in the background. It's very useful as I often take pics I want to post in an ad or something like that. The issue for me is that it does NOT import videos and I wanted to move some videos over from my phone so I imported manually. It used to be that this was a perfectly safe thing to do. It's not any more. All the photos are duplicated (1000's of them) and the videos have one version. Going forward I need to remember to import videos only.

Sorry, don't know how to fix the problem.

OK, thanks. Not sure about the workflow/setup issue. They has been one copy of each for about 2 weeks now (since I bought my new Mac) yet today I noticed it has now replicated nearly all. Haven’t done anything different. Any suggestions to point me to?

I have the same issue on my MacBook Pro mid 2010. It seems that every time I get and update to Photo's even going way back to IPhoto, I wind up with dupes. I even have multiple Libraries that I did not create. And the Libraries contain slightly different photo's.

and update to Photo's even going way back to IPhoto, I wind up with dupes. I even have multiple Libraries that I did not create.

You may have created the multiple Photos Libraries by opening the iPhoto Library in Photos multiple times. Whenever you use Photos to view an iPhoto Library, it will create a new Photos library. Also, if you launch Photos and it cannot open the current Photos Library, because it cannot access the drive or the drive is not compatible, you may find a new Photos Library on your system drive in the Pictures folder.

Do you know anything about a Gemini 2?

I have and both Gemini 2 and Photos Duplicate Cleaner but neither seems to accept a batch of my photos being dragged and dropped into place.

Any suggestions very gratefully received !

**** off Larry no one needs your passive-aggressive messages here. Yes this happens to multiple people and yes there probably is a function that automatically does it so as I said **** off if you don't know how to fix it.

I have recently encountered the same issue with duplicated photos. In my case it seems to be limited to photos taken with iPhone. When I compare the duplicated, there is a new file extension used .heis for more recently photos and during some point of the transition some now have both .jpg and .heis extensions.... causing the duplicates.

I have not dug too deep into the issue yet... whether this was a result of my migration to a new MBP running High Sierra or an iPhone update or both....and whether this file format is a good thing.

You may want to read this document: Using HEIF or HEVC media on Apple devices - Apple Support

Your iPhone is probably set to take the photos in the new, space saving HEIC format. And when you import the photos from the iPhone, they are converted to JPEGS.

When you now import again from your iPhone, the previously imported HEIC image will show as new photos, because the version on your iPhone is a JPEG.

Are you using iCloud Photo Library? iCloud Photo Library will transfer the photos as they are, as HEIC files, but your download settings for USB import may be different.

The manual for PhotoSweeper does not show support for Photos Library 4? Have you used this utility with this library?

Same question? Same answer as given in Feb

and it is not possible to have multiple libraries unless you create them - nothing magically creates Photos libraries ever - users do that

LN

Yes but it won’t accept my photos library or photo albums. What should I do, do you think? Any ideas? S

Do you get this window when you launch PDC?

The library shows up in the bottom window and its checkbox selected to start the scan.