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Duplicate Annihilator

State of Duplicate Annihilator

Enjoy our appreciated newsletter

Interested in getting the latest news from us including a great deal of tips and tricks related to Apples iPhoto, Photos and Aperture? Then why not subscribe to our much appreciated newsletter?

Newsletter archive

State of Duplicate Annihilator – part 41

  • New features in Photos 8

State of Duplicate Annihilator – part 40

  • Duplicate Annihilator for Photos v8 released
  • How to search, filter, suggest and “facet” your search in Photos.

State of Duplicate Annihilator – part 39

  • How to work with People/faces?

State of Duplicate Annihilator – part 38

  • Metadata, what is it and how do I use and edit it?

State of Duplicate Annihilator – part 37

  • Introducing Duplicate Annihilator 7.5.0 including fix for iCloud and missing files.

State of Duplicate Annihilator – part 36

  • Introducing Duplicate Annihilator v7 including copy metadata from duplicates to originals.
  • Smart albums for missing people no longer working
  • Photos 7 and Live Text

State of Duplicate Annihilator – part 35

  • Preserve folder and album structure as keywords

State of Duplicate Annihilator – part 34

State of Duplicate Annihilator – part 33

State of Duplicate Annihilator – part 32

State of Duplicate Annihilator – part 31

State of Duplicate Annihilator – part 30

State of Duplicate Annihilator – part 29

State of Duplicate Annihilator – part 28

State of Duplicate Annihilator – part 27

State of Duplicate Annihilator – part 26

State of Duplicate Annihilator – part 25

State of Duplicate Annihilator – part 24

State of Duplicate Annihilator – part 23

  • Working with Duplicate Annihilator for Photos – part 3

State of Duplicate Annihilator – part 22

  • Working with Duplicate Annihilator for Photos – part 2

State of Duplicate Annihilator – part 21

  • macOS 10.5 Catalina, Photos 5 and Duplicate Annihilator v4
  • Working with Duplicate Annihilator for Photos – part 1

State of Duplicate Annihilator – part 20

State of Duplicate Annihilator – part 19

State of Duplicate Annihilator – part 18

State of Duplicate Annihilator – part 17

State of Duplicate Annihilator – part 16

State of Duplicate Annihilator – part 15

State of Duplicate Annihilator – part 14

State of Duplicate Annihilator – part 13

State of Duplicate Annihilator – part 12

State of Duplicate Annihilator – part 11

State of Duplicate Annihilator – part 10

State of Duplicate Annihilator – part 9

State of Duplicate Annihilator – part 8

State of Duplicate Annihilator – part 7

State of Duplicate Annihilator – part 6

State of Duplicate Annihilator – part 5

State of Duplicate Annihilator – part 4

State of Duplicate Annihilator – part 3

State of Duplicate Annihilator – part 2

State of Duplicate Annihilator – part 1


My name is Anders and I'm the CEO of Brattoo Propaganda Software. It’s time for another newsletter. It was my intention to send this email last week but a local kid got lost, so I had to prioritise things and I joined Missing People. We spent a lot of the time searching through the local woods, he was found alive and in good health. In this letter I will tell you more about how to work with Duplicate Annihilator, and also about a new idea I have that hopefully will interest you. I hope that you will enjoy it.

A new idea and a new upcoming application

I get a lot of requests for things that you want to do with your photos. Some of those ideas turned into applications in our free section. But, every app created requires time to create, update and maintain. So I was thinking that perhaps a new application that is a platform for many things would be a good idea. It will be like a toolbox. This would make it easier to provide you with more features quicker and easier. It might include small things such as copy, set GPS data and batch renaming photos. I could also Make it easier to use titles with various settings, showing a photo GPS position on Google maps or a connection to external services such as Googles Vision API for tagging. I’m sure you have plenty of ideas that you would like to have implemented, or things than can help you in your daily workflow. Let me know your thoughts by replying to this email.

Working with Duplicate Annihilator for Photos! – part 2

In the last newsletter we learned everything about how to locate your Photos Library, now it is time to run Duplicate Annihilator with the default settings. We will do this to see what Duplicate Annihilator is actually doing, and what all those progress indicators really mean?

Select your library

First, select your Photos Library, this is needed for two things: Duplicate Annihilator needs to know where your library is located and so Duplicate Annihilator can tell Photos to quit and open. This allows it to make sure that any changes already done to your library, are correctly saved before starting to process.

Scan for duplicates

When the Photos Library is selected then the “Scan for duplicates” button will no longer be greyed out and you are ready to go. When you click on it, a few dialog boxes will appear, first a box that tells you which mode you are running in and then if you have made a selection of one or more photos in Photos. Duplicate Annihilator will ask if you want to scan only the selected photos or your whole library. 

Then the process starts. You might get a spinning beachball or find that Duplicate Annihilator reports are not responding, but don’t worry, it is running just fine. In the top right part of the Duplicate Annihilator application we have a few progress indicators that will help you to monitor the progress. 

Hint: If the process just seems to go extremely quickly, and all numbers next to the progress indicators are zero, then you most likely have a damaged Photos Library. There is help though, simply quit Duplicate Annihilator and Photos and then hold down the Option and Command keys while starting Photos to repair the library.

The Result

Below the progress indicators is the Result which shows what has been found. Let me walk you through those numbers. First, we have duplicates found which is exactly that. Then we have originals found, an original is the photo kept in a set of duplicates. Photos that do not have a duplicate will be untouched, and not considered an original. Since one original can have multiple duplicates, this also means that the number of originals and duplicates might not be the same.

Thumbnails are small photos, by default smaller than 360x360 pixels and less than 100kB. Thumbnails were a big problem in iPhoto. iPhoto could suddenly import it’s own internal thumbnails as regular images. One problem with that is that thumbnails, and high resolution images, look the same when browsing the photos. Thumbnails are often misstaken for duplicates, but when looking at each photo one by one, then you’ll see the difference.


Missing images are photos that are represented in the Photos database, but the actual image files are not located on your hard drive. This can either be a problem, where your original photos are actually missing, or you simply have a Storage Optimized iCloud Library. A Storage Optimized iCloud Library is where some or most of your images files are actually located online, in your iCloud account, to save space on your local hard drive.

Corrupt files are rare, but we try to detect them by parsing the JPEG data in them. If the parse results in an error, Duplicate Annihilator can mark those as well.

Faces works the same as thumbnails and have the same origin. The faces are 480x480 square pictures, which used to be part of the iPhoto internals. 

So, at this point you probably have a question. If Duplicate Annihilator detects a set of duplicates, how does it decide which one to keep as the original? Well, Duplicate Annihilator chooses the original based on which photo has the highest resolution and largest file size. This way RAW is kept over JPEG, less destructive compression is kept over more destructive compression, and high resolution is kept over low resolution. One aspect to this is that the HEIC format that today’s iPhones use, instead of JPEG, generates smaller file sizes but have better quality than JPEG. Therefore, we have the Keep HEIC as the original instead of JPEG setting the the Duplicate Annihilator settings. If you want, you can read more about the HEIC format in a previous newsletter.

What happens now?

So, Duplicate Annihilator found some duplicates, what do we do now? By default, all duplicates detected by Duplicate Annihilator have had their description/comments field set to the word “duplicate”. This way they are easily located and easy to delete in Photos. Use the search filed in the upper right corner of the Photos application and search for “duplicate”.  Please make sure that you don’t search for “duplicates”. The shown photos are your duplicates and you can select them all (Command+A) and delete (Backspace) the duplicates with just a few mouse clicks or keyboard shortcuts.

There is more

There are plenty of useful settings in Duplicate Annihilator and more tips and tricks on how to use Duplicate Annihilator, but more about that in the next newsletter.

Black weekend

So, as I mentioned in the beginning of this newsletter I intended to release this newsletter last week but had to prioritize other things. And now it is Black Friday Weekend, I hope this newsletter is not lost among all other emails in your inbox. But since it is Black Friday Weekend, I should offer a discount code, here it is! A 50% Black Friday Weekend discount code for you and friends: BLACK

This newsletter and previous letters

Several of our readers have requested that we resend previous emails so that they could catch up on earlier tips and information. All previous emails are available online in our Newsletter section at https://newsletter.brattoo.com

The free apps section

As I have mentioned in previous letters we have received requests on how to automate some tasks in Apple Photos or tasks related to photos. Those tasks might be tedious to work out manually but are easy for us to solve. The apps include a tool to set the Photos Titles based on filename (with or without file extension), a tool to copy and apply GPS coordinates between photos and finally a utility to set the correct file dates on image files based on the photo date stored in the metadata within the image files. You’ll find all our free apps at https://free.brattoo.com.


Finally I would just like to tell you that our upgrade discount for Duplicate Annihilator for Photos is still available. For only $4.95 you can upgrade any old Duplicate Annihilator license to Duplicate Annihilator for Photos and for just two dollars($2.00) more you can upgrade any old Duplicate Annihilator license to the Duplicate Annihilator Toolbox including a family pack! This means that you get five licenses for you and your family for all versions of Duplicate Annihilator including iPhoto, Aperture, iOS and Photos for only $6.95.

Get the upgrade from: https://upgrade.brattoo.com

Thank you for your time, I hope that you found this email informative. If you have any feedback, suggestions, questions or ideas then please reply to this email. I read all emails and reply to them in person.

Best Regards,
Anders, CEO and Founder, Brattoo Propaganda Software

What our subscribers say

Great email! I appreciate that you appreciate the Photos difficulties.”

Bortsett fra Apple, er vel du den som kan Photos best. Takk for kjempeflotte nyhetsbrev og uerstattelige funksjoner. ”

"Donner pour recevoir" as we say in french! I like the way you give advices. I read your email up to the end.”

Wow! Thank you for writing a clear and concise review and status of your software update and beyond! Well done!”

hi anders, GREAT informative email, thx.”

Thank you very much for all that information! It is very useful.”

I found this email most informative, very! Perhaps you should consider doing more of these in the future...good advertising and helpful.”

Your emails are excellent. Thank you.”

Your tip on dragging to email is terrific, i was exporting to new email and then dragging…… 👍”

I have to thank you for this specific news letter as it is way above and beyond any previous one in my estimation!”

First of all thanks for your very informative mails - I do enjoy them and have learned one thing or the other in almost every mail.”

I have always learned from your newsletters and appreciated the personal voice you give them. I encourage you to keep sharing with us.”

Thanks for these very useful explanations”

It’s always a pleasure reading your update emails. Very few people write with such clarity and simplicity. I find myself enjoying the writing even if the subject isn’t immediately relevant.”

I always enjoy your breezy, friendly letters and appreciate so much the way you get back on issues.”

Just wanted to say- I enjoy your email newsletters. I get so many that I delete immediately or unsubscribe but I almost always enjoy yours and find at least one nugget of info I didn’t know.”

I appreciate the unusual quality and personal touch of your newsletters.”

The Photos tips are a big help - we own so much tech with our Apples and use so little of it.”

As always, a fantastic newsletter!”

Very much appreciate the newsletter.”

Thank you for your work. Very helpful. ”

I actually read this whole message and appreciate the time you took to write it!”

Dear Sir, you have not idea how “happy” I am to receive your recent email.”

I wish other software companies were as helpful and friendly as Brattoo Propaganda Software.”

Thanks. Very informative and well written.”

I just want to say thank you for sending me all the updates, I appreciate it, It's a great example of good service.”

From Bogota, Colombia I just wanted to thank you for these very thoughtful news letter.”

These emails are great. They would also make a good video series!”

Thanks for your updates on Photos, it does help to get another perspective on the use of the program.”

Anders - I treasure your emails! Thank you for keeping us informed.”

I can't thank you enough for your programs and your news letters. They are invaluable to me.”

Thanks very much for all the info!”

Dear Anders, thank you for your very thoughtful and informative email.”

thanks for this infol! and thanks for developing great software.”

Thanks a lot for your highly informative newsletter.”

I really appreciate these emails - I read every one, and I thank you for writing these, and for your great software!”

Thank you so much for your newsletters and your efforts to destress my life!!”

I have been using Annihilator now for some time, and I have always found it very impressive that you personally write and answer all your emails. I get hundreds of emails, many from companies like yours, but yours are always so well written, with a real personal touch, that I try and make time to read them!”

Thanks Anders, That information was very helpful.”

Thank you, Anders. Interesting and helpful information - as always!”

As always, I look forward to your next newsletter.”

I love your emails they are short and fascinating full of straight talking, awesome.”

Much appreciated, Anders.”

This e-mail was very useful.”

Thanks for your email regarding the trials and tribulations of living with iPhoto and its new mother Sierra MAC OS.”

I just wanted to email and say that I really enjoy these detailed emails you send out. I will definitely use you again in the future. Thank you Anders.”

I really enjoy your newsletters and appreciate the helpful information you provide.”

I wanted to say this was the easiest and best 'read' on iPhoto/photo I have seen yet. As a community college president, I don't have time to read most secondary mail. However, once I started, I finished yours. And BTW, love your sw/apps. Thank you.”

I am writing to tell you that I really appreciate these emails from you. Not because they are directly applicable to my needs, but because they are intelligent, informative, and generous.”

I really enjoy reading your informative and personable emails, and no, I'm not just a saddo geek who doesn't have a real life ;) but I do find your occasional emails useful and entertaining.”

I really appreciate the effort you put in to these messages: you answer questions that I hadn't thought to ask yet, and inject a bit of wonder back into my daily interactions with my computer.”

I just wanted to thank you for your newsletter. It is so genuinely helpful and positive. A pleasure to read.”

Thank you too, for the newsletters and the in-depth information you find for us about how our photographs live and change on our devices and across all their various networks: I feel the time when this was a simple thing to understand has long passed, and your messages make a huge difference to our understanding. You write clearly, concisely, and with authority, and I really appreciate the effort that you and your team put in.”

Love your newsletters, most informative and helpful!”

Thanks, Anders. Very helpful indeed. ”

Thank you for good info!!”

Thank you for your email and taking the time to write a few tips on using Photos. I did actually learn a few new features from your list, which are quite useful.”

Thanks for all those clarifications.”

Thank you . very useful information!!”

I am truly grateful to you for your excellent software and extremely helpful newsletter.”

Thank you for your ever helpful newsletters. I archive them all as a future reference.”

Thank you very much for your email I have wondered for some time about the different between All Photos and the Photo View.”

Thank you, Anders, for your informative newsletter. I have to admit that I haven’t read any of the newsletters before this one. I didn’t understand that they were full of information - and not just advertising. Now, I wish I had the previous 4 newsletters to read through and learn about Photos.”

Thanks for your excellent series of newsletters.”

Thank you for sending me this information.”

I just want to thank you for your email updates.”

Thanks a lot for all those informations. Very interesting and clear!”

Excellent informative letter. Well written. Very useful. A breath of fresh air in this impersonal world.”

Thank you for yr very informative e-mail. Becoz you composed it so well, i gained a lot by reading it. ”

I just wanted to say thank you for your newsletter and all your tips and hard work with the apps.”

Thank you. This was very informative. I appreciate the help.”

THANK YOU for this email !! I do hope it's part of a series that will continue, as it's the clearest, most direct and concise software explanation I've ever read. You're writing in a voice that I TRUST.”

Many thanks for your continued communication. You must be the most communicative CEO who ever existed and I, for one, greatly appreciate it.”

Thanks so much for this email. I read every one of your messages (I am a major Apple Photos user) and find so much value in your emails. ”

The Search information was very helpful. Thank you.”

Great newsletter as usual!!”

Keep up the good work!”

Thanks for your newsletter! Old skool but delightfully filled with wisdom!”

Thank you Anders, for all your useful information”

Thank you for your informative emails. They are always good to read and the tips within are valid and very useful.”

Thank you very much for your informative emails. Highly appreciated!”

I just finished binge reading all of your absolutely USEFUL and INFORMATIVE newsletters (all 19 parts)! What a great job you do informing your users and what a FANTASTIC job your Team does for your users.”

I am a loyal customer, and follower of Brattoo newsletters. I always look forward to getting your updates, and I am amazed at how brilliant you and your staff are at problem solving. ”

The data you have surfaced and the explanations are fantastic!”

I love your newsletters, and always learn lot from them.”

Thank you for explaining the definitive aspects of Photo and iPhoto and for the pointing out the various sidebar settings. With much appreciation for keeping us users informed.”

I just wanted to compliment you and your company on how you conduct business. Your letter to your users is most welcome.”

Absolutely love getting this newsletter. Thank you for all the invaluable Photos info and keep up the great work!”

Thank you for such and informative update and reviewing previous questions especially the deleting photos.”

Thank you for your very informative newsletters!”

Hello Anders! this newsletter was very helpful, thank you!”

You are the best!! Thanks again for what really is a public service.”

Very useful comments and tips which I have taken on board.”

First of all thx very much for your precious newsletters. I have sent them to friends as example of perfect Newsletter, how it should be and is of most value to readers.”

I just wanted you to know I appreciate your newsletter, especially the useful tips you provided. Your tone and writing style is a refreshing change from the typical emails I get from software developers (and other vendors).”

Great newsletter.”

Thank you. Useful info. ”

Finally got into your excellent and especially informative newsletter.”

Thank you for your fantastic support of your products and especially your State of Duplicate Annihilator email series. You set an example that very few developers come close to matching. ”

Very useful information. Thank you.”

I am impressed by the fact that you have spent time and effort to explain in simple terms what it will do and how to do it in such a way that we don’t have to sit scratching our heads when we first come across it. Let other developers take note and imitate.”

This letter letter was very interesting. If not too much work would you send me Parts 1 and 2, please?”

Thank you Anders for your recent email; wow, what comprehensive detail about everything! I have saved it for future reference, but I applaud your desire to inform all your customers about the changes. Thank you.”

Thanks for the note. I found it very informative. It answered several question I was wondering about. Please continue these updates.”

Yours is one of the few unsolicited e-mails (Spam is such a rude term) I don't mind getting. I appreciate your casual style and the fact that you offer free software and advice. In fact, once I finish this note to you, I plan to order your upgrade even though I may never use it.”

Thank you these are very informative newsletters!”

I just wanted to say, of all the emails I get from all the different companies I’ve bought software from over the years, yours are my absolute favourite, and I always read them all the way through because I know I’ll learn something useful. ”