Where Does Lightroom Store Catalogs, Previews, and Backups?

1. By default, where does LR store:
a. Catalogs (.lrcat)
b. Previews (.lrdata)
c. Backups of Catalogs and Previews
2. Can these locations be changed?
2a. If so, how does one specify where LR will store each of the above?
3. Is there a specific relationship of location the Catalog, the Preview, and the Backups, or any partial combination of those three, must remain in?
3a. If so, what is/are that/those relationships?

a) By default in the Lightroom folder within My Pictures / Pictures
b) Always in the same folder as the catalogue
c) Wherever you tell it - which should be somewhere different. No backup of Previews.
Re 2, just move the catalogue in Explorer / Finder, double click it. If you didn't move the Previews, LR starts a new one in the same folder as the catalogue, following (b) above.
Re 3, answered above. Backups can / should be elsewhere and it's your choice where.
Notice that in Catalog Settings there's a Show button that reveals where your catalogue is.

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Where does Leopard store icon preview templates?

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I'm pretty sure about this. QuickLook.framework appears to include PNG resources that are not used by QuickLook proper, but that do contribute to preview icons.
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Is there any benefit for me to use smart previews if my Lightroom 5 catalog, previews and media are all on the same external USB HD?

I keep everything on 1 External USB3 HD so that I can pug it into my Mac at home or my PC at work and just keep working without syncing anything to the local machine. So is there any benefit with Smart Previews in this case? I heard somewhere that it might make the Develop module a little quicker, but is this only when using the Smart Preview and not the full res image?

Lr uses smart previews instead of ACR cache for initial develop-module view when photos are online - amount of benefit is, in my experience, very minor (not noticeable without using a stop-watch..).
But if photos are offline, you may experience more substantial savings.
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Anyway, if you are willing to give up zoom for one edit pass, you can resize the smart previews so 1:1 fits in your allotted display space (e.g. 1280 x 960, which would be 1/8 number of pixels..), e.g. using the PreviewExporter plugin - then things may be significantly faster in develop module. PreviewExporter also has a feature to take originals offline, and put them back online.
To be clear: the amount of savings may or may not be dramatic - how much there is depends on your system, size of raw vs. smart preview image, number and type of edits applied, etc..
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Where does workspace store the pdf and excel file ?

Hi,
I'm working on a Web Analysis project and I have created a dynamic web menu based on the workspace repository to improve the poor capacities of WA in terms of menu. I use the javascript API to control the WA applet from the menu.
Now my problem is that my customer created a folder in workspace (which is translated into a sub menu of my dynamic menu), and that folder contains pdf and excel files. The function openFile which I use to open report in the applet doesn't work on pdf and excel files. So I've been looking for the files on the server, to know where they are stored, so that I could just modify the java class that generates the menu.
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When itunes backs up my iphone where does it store contacts

When itunes backs up my iphone where does it store contacts

iTunes places the backup files in the following locations:
Mac: ~/Library/Application Support/MobileSync/Backup/
Windows XP: \Documents and Settings\(username)\Application Data\Apple Computer\MobileSync\Backup\
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Where does iPhone store backups in Mac and Windows?

Sorry I could not find the answer elsewhere.
Where does iPhone store backups on Windows and Mac?
Can the location be changed?
Thanks!

Mac:
Library/Application Support/MobileSync/Backup/
Windows:
C:\Documents and Settings\username\Application Data\Apple Computer\MobileSync\Backup
(Note you may need to turn on show hidden files and folders to see it on Windows)
As far as I know, you can't change it.
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EDIT: Too slow to post :P.

How does installation of CC Photoshop and Lightroom affect my current catalogs, previews, and caches?

I am going to subscribe to the Adobe Creative Cloud Photography Plan. How can I preserve (import?) and use my current catalogs, previews, and caches from my current installation of Lightroom? Or will I have to start over once the new version of Lightroom CC is installed?

If you are currently using Lightroom 5 then switching over to the creative cloud is really simple. There are some who say that it isn't necessary to switch to Lightroom downloaded from the creative cloud. But I did. I'm using Windows, so I used the standard uninstall process to uninstall my standalone Lightroom. Then I installed Lightroom from the creative cloud. After the installation was complete there was an icon for Lightroom (just like the previous one because it is the same program) on my desktop. I double clicked on the icon and Lightroom opened the same catalog that I had been using and everything that I had done previously was still in place. You see, the catalog and previews and all those other files are user files generated by Lightroom on your computer. But they aren't part of the Lightroom program. So removing the Lightroom program does nothing to your catalog or previews or preview cache. It's the same program precisely. It's just licensed differently.
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I installed a game, where can i find the files and maps? where does iMac store this data?

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Depends on game, i would look first on the game file itself, right click (or ctrl click) the game file you installed (Applications?) and select show package contents, its usually a application bundle, as in basicly a folder where the application and the required files and subfolders are.

Where does MAX store channel config such as names, input type, and scalers

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LR 4 - image does not appear in Preview and will not print`

The selected image appears on the main/center panel but not in the preview screen. Printing results in a white sheet of paper with no image at all. The image has been updated to LR 4 - but made no difference. I've served help and the forums (where i saw mention of similar problems, but no comments or guidance on the problem). What am I doing wrong?

The problem began with the installation of LR4. I print directly from LR4 to my HPZ3100. I routinely select "print preview" in the print dialogue box. Now the first print I see the preview and then it prints. If I select a second print job and use the "print preview" the print preview screen comes up blank and never loads. If I try to delete the print job, it just never responds (resolves) so I have to turn off the computer and the printer and restart to clear the print job. if I don't use the print preview, it prints just fine (except that I'm not able to check what's about to be printed). Thanks for any thoughts you have on this.
Date: Tue, 10 Jul 2012 16:01:47 -0600
From: [email protected]
To: [email protected]
Subject: LR 4 - image does not appear in Preview and will not print`
    Re: LR 4 - image does not appear in Preview and will not print`
    created by Brett N in Photoshop Lightroom - View the full discussion
Bill, if this is only happening some of the time, then we are probably looking at a resource issue. Any pattern in when things won't print? e.g. Certain file type won't but others will? Or is it more of a timing/order thing? e.g. First file prints fine, second does not? VStromee, do no files print for you? Or is it like Bill and sometimes the print and other times they do not? Did you install any new software recently or have any updates to the OS or any application that has printing capabilities?
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Where does Lightroom keep my photos?

I always import my photos from my CF card into my USB external hard drive. When I view my hard drive, Finder shows all my photos and I always thought that's where my pictures were.
Then, I unplugged my laptop, took it to another location, and run Lightroom on battery. Wait a minute, all the photos I thought were on the USB external hard drive which is now disconnected showed up and play perfectly in slide show.
I went Finder through every file in the Macintosh HD, I can't see a single photo, yet Lightroom is definitely keeping a copy of it somewhere in the Mac HD.
My questions are:
(1) Where does Lightroom hide these photos?
(2) How does this impact my Macintosh HD storage capacity?
(3) How can I remove these photos from the Macintosh HD so that if I lost my Macbook Pro, the thief cannot steal my photos.
Please help.
Thank you all in advance.
Eddie

What you are seeing are the previews that Lr generates for every image that gets imported.
(1) These previews are not hidden but are in the same directory as the Lr database. Read more here:
http://www.adobe.com/cfusion/knowledgebase/index.cfm?id=333660
(2) Lr previews -- depending on what size you generate and the number of images imported -- can consume a lot of space. But disk is cheap.
(3) Paranoia is no reason to delete the previews. Don't lose your laptop!

Lightroom 2 Catalog Previews

I am running LR3.3.
I am doing some housecleaning, and I've found this folder: C:\Documents and Settings\My Name\My Documents\My Pictures\Lightroom\Lightroom 2 Catalog Previews.lrdata\
It looks like something that was abandoned during an upgrade, and thus it's a candidate for the trash bin. Any thoughts?

Lr 3 creates a copy of the original when you upgraded from an earlier version (i.e Lr1 or Lr2 to Lr3). Therefore, if you can locate a copy for Lr3 then yes it is redundant and can be deleted. The new file may not be labelled Lr3 but the date stamp should still give you a clue as to which is the most recent. That being said, a new copy will be created upon relaunch should you delete the wrong version. Basically, trashing the lrdata file simply means that Lr will need to rebuild a new copy.

Where does Lightroom display color space?

Where does Lightroom display color space assigned to an image? It should be in the metadata panel. In Bridge it displays Color Mode: RGB/B&W and Color Space: sRGB/Gray Gamma 2.2. Or does Lightroom convert everything to Adobe RGB or ProPhoto RGB?

LR's internal working space is a variation of the ProPhoto RGB space, ProPhoto RGB's gamut but with a linear tone curve instead of the standard gamma 1.8 curve. This is because it is primarily a Raw editor and Raw sensor data is linear and because the ProPhoto gamut will more or less include all the colors most digital cameras can capture (depending on the filters in front of the lens, some cameras may capture ultra-red that is outside ProPhoto RGB). Retaining the linearity of the data makes editing calculations easier, faster, more flexible and more accurate since data has not been lost to the quantization errors involved in gamma correction. So for a Raw file the workflow is the assignation of the camera profile and conversion from that to linear ProPhoto RGB. However, the display data from the Develop module (the data sent to your monitor) undergoes a further conversion that involves the application of the sRGB tone curve, which is sort of gamma 2.2 but not exactly. This is because linear image data looks terrible - very dark and flat. Thus, the display is in a hybrid space called Melissa RGB, ProPhoto primaries and sRGB tonal response curve. At the time of export or printing a conversion is done from linear ProPhoto RGB to the output space designated by the user, which can be any RGB space - ProPhoto RGB, Adobe RGB, sRGB or any other one, provided you have an ICC profile for it in your OS's Color folder..
Previews used by the Library module are jpgs in the Adobe RGB space.

Whatever happened to previews.db in Lightroom 5 Catalog Previews.lrdata?

In earlier versions of Lightroom, there used to be a file called previews.db inside a directory called "Lightroom 5 Catalog Previews.lrdata" , but in Lightroom 5.7, I see that "Lightroom 5 Catalog Previews.lrdata" has become a file (no longer a directory) and there is no previews.db. I had a plugin that needed to read previews.db in order to generate thumbnails. Now I don't know what to do. (Rob Cole, you wrote the function that did this, and it worked great while there was a previews.db -- perhaps you know what is up.) If anyone can point me to where a file similar to previews.db can be found (it has to be parseable by sqlite), that would be very helpful. Thanks!

I don't use a Mac, so cannot answer definitively, but perhaps this folder was compressed either via selecting some option on the folder, itself, or by running some maintenance function that automatically compressed folders that were deemed as wasting space. I would think you'd want this to be an compressed folder so as not to use up an inorfinate amount of time to work with the previews contained inside. Can you make an uncompressed copy and then rename the compressed original as something else and rename the copy to the correct folder name?
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OS X Mavericks: Compress and uncompress files and folders

Where Does Lightroom Store Catalogs, Previews, and Backups?

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