Prev "previewed" files in 10.6 dont scale via "show icon preview" function

1. use DropIcon 3.0.2 under a lower version of OSX than 10.6
2. import your "preview built" files into 10.6 (notice also that files that have a preview built into them are larger in file size than the same file which doesnt have it)
3. scale a folder full of images to for example - 180 px squared
4. notice that 10.6 cant build a new preview based on the new size
how to "show icon preview" files which have been previously "preview built" by apps like DropIcon 3.0.2 ?
This would be very useful....
TIA

You may not think of icons as 512x512, but Apple now does. The transition started in Leopard, and is now complete--pretty much all of Apple's icons will now go to 512pixels in the various and sundry places they are displayed, from window views for Icon, CoverFlow, and the preview pane of Column view, to the GetInfo preview, to Spotlight results displayed in icon view.
As to your own custom thumbnails: if, as mentioned previously, you used Photoshop with the option to save a custom thumbnail, or you used a dedicated program to save a custom thumbnail for an image file, then those custom thumbnails were added to the image file as a resource fork. WAY back such custom thumbnails were 32x32 pixels. In the more recent past they were 128x128. Indeed, that is still the size used by Photoshop when it adds a custom thumb.
If the Finder is displaying any view that shows a preview of the file it will either display the custom thumb that is part of the file, if one is present, or draw its own preview if no custom thumb is embedded in the file. And if it uses the custom thumbs they will NOT scale upwards in any pretty way, beyond whatever their original size was--they'll just get pixalated. The advantage, if you don't need to be able to scale up to 512, is that the display of a folder full of images with custom thumbs is instantaneous, while a folder full of images without custom thumbs may take a noticeable amount of time for all of the previews to be drawn (you can see them appearing as you scroll the folder). The disadvantage to custom thumbs, as you have discovered, is that they don't scale well. If you want to be able to scale the preview thumbnails in various Finder views, you need to remove the custom thumbnails you have added, either via the save option in Photoshop, or with your third party program. You can't tell Finder to ignore them: if they are present Finder assumes you want it to use them, rather than its own preview function.
Francine
Francine
Schwieder

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'show icon preview' not working, Icon preview no longer visible

I have lots of folders full of jpg files. The preview icon do longer appears and all i get is the genetic icon. This happened randomly yesterday and I don't know how to fix it. I have the 'Show Icon Preview' enabled yet I only get the generic icon. Any ideas why? (OS X 10.5.8). I have tried a restart, permissions fix, and reindexed my hard drive with spotlight. No luck. Please help!
Simply: I don't know how to get the preview back even after selecting the "show icon preview" box on the options. HELP!

There probably are some hidden probable causes for this behavior;
while not knowing if you perform any general maintenance in a
preventative way for your OS X system, some of the suggestions
I could provide here may mean little or nothing to some users, or
to others, who have done them for years as a matter of course, to
suggest those could be the same as an insult; or a laughing matter.
You could try rather basic things, a few steps above 'repair disk
permissions' in Disk Utility. That's been around since OS 10.1.5.
And it has a place among other steps one can do to help out.
Sometimes, you can start up into SafeBoot mode; then choose to
run Disk Utility, and repair disk permissions. When done, quit D.U.
and restart the computer normally. - Other repairs to the system may
be performed by booting up from the OS X installer and run Disk
Utility from the menu drop-down options in the main Installer window.
You can repair disk, verify disk (SMART verify), repair disk permissions
and verify disk permissions. Plus other aspects of Disk utility that are
tools to set up partitions and other things beyond a basic simple fix.
SafeBoot mode, basic:
+Hold the Shift key down on start-up, keep holding it until you get a login+
+screen, enter admin password, then when desktop appears, you can+
+use GO in menu bar to find Utilities folder, and run Disk Utility's repair+
+disk permissions. When done, quit the Utility and restart.+
There probably may be some .plist file controlling the view of image icons
and since I haven't followed that issue (experienced it in the past, forgot
what I did to fix it) I am not sure what preference file to suggest trashing.
But you can be very selective, when knowledgeable, and do that. Then,
later on, when you restart the computer the default setting would return.
You could set that to whatever (if not the default) & that may fix the matter.
{One preference file location that probably would contain your user account's
.plists would be in the Macintosh HD> User folder> Library> Preferences>
...Now, the correct one among these becomes important. There is a desktop
plist, a finder plist, and others. Since each user in a Mac with their own setup
account can change these, yours should be in your booted user account.
However, some time has passed since this kind of issue occurred and I didn't
need to delete a .plist to resolve it. Yet that may be a short fix.}
These issues usually have a cause; sometimes it may be due to other items
not quite right in the user interface and symptoms of that sometimes show up
in odd places and they may not be directly related. Subtle and dismissed, a
few of those quirks are not show stoppers in OS X. A 'safeboot' & disk utility
may resolve some; to find a correct .plist preference file & trash it may, too.
If the computer's hard disk drive is getting full of content you have added, it
may be time to archive image libraries and/or music libraries off the Mac's
internal hard disk drive and then thin out content on the computer. That can
help a computer run better. Damage to data on the computer drive may be
a result (or outright is) of over-filling the hard disk drive. Overwriting content
is sometimes an issue; it could be subtle, too, for awhile. Checked into it?
For some preventative maintenance chores, I have and use OnyX which is
a free running utility tool (which I refer to as a utility interface tool) that pulls
the strings in OS X that some users would not think of the Terminal utility
ways of making them work; this gives you a GUI format, an application to
run various sets of items rather easily. If done without concern, these tools
can do bad things (same as booted Disk Utility, drastic tools are onboard.)
OnyX is a free-running downloadable app from Titanium Software; and since
I only use it maybe once every several months (or sooner if bored or if active
in using one computer more than usual) & have it run in Automation selection
having chosen all the check-box choices, so it will do those. I also have OnyX
set in its preferences, to restart the computer after it is done running those.
This may do more than you need in this selection of Automation. I have never
had any issues with this; but some preference choices system-wide may need
to be set back to your choice, as it can be also set to wipe caches or other old
logs and misc stuff. A few settings won't make much different to default from.
Usually, I prefer not to shut off or restart my computer until such time as when
Activity Monitor shows some issue with virtual memory and swap files or space
on the hard drive being excessively allocated as Virtual Memory. At times, a
restart may be required. My Mac can run a few months without restart, but it is
left to sleep or I will put it to sleep. Even so, some basic background OS X items
may not automatically run as they should. You can force the maintenance cycles.
If the 'show icon preview' does not work even after performing catch-up maintenace
and including OnyX, SafeBoot, and others; and if you have at least 30% of the total
hard disk drive capacity open or free from use, then you may have to consider a few
other ideas. (Removing the plist file may be the only thing you'd need do.) Another
idea in a few cases of more severe odd behavior, and if you updated your Leopard
10.5 to your current/last level through use of the Delta or small update file, would be
to get the larger Combo (last version) and after repairing disk permissions, install it
over the similar system in your computer. 10.5.8 over 10.5.8. Then restart and go in
and repair disk permissions again. Perhaps later on, safeboot and do them.
That much effort is seldom needed. Preventative maintenance and care to not over-
fill the hard disk drive, helps to almost never see such a problem in your Mac OS X.
{In a few cases, people who have upgraded from an earlier OS X version (Tiger-to-
Leopard, for example) and had a problem, may still have a similar problem later. So
it is best to fix issues and not hope to upgrade over them. Unless it is a totally new
bare-bones secure zero-overwritten drive, correct partition map, reformat, new install.
Then, there should be no doubt if there was an odd problem in the software, only.}
Hopefully some of this late night rambling may be of some help.
+Answering a question in these forums can be like replying to a+
+statement thus, "why won't my car go?" And an answer starts+
+out by asking dozens of questions about the car itself and the+
+status of the car, if it has fuel, tires, if it's been in a flood, or if+
+there is an engine, fuel, battery... At least I know yours runs!+
Good luck & happy computing!

Show icon preview glitch

Hi there...this is puzzling me. Just recently any MS word file icons located on my desktop changed to blank icons.
I then discovered that in order to show the icon previews for MS Word .doc and other files, I need to un-check "show icon preview" in the view options menu.
But this is odd, because it's the reverse of what you'd expect. Normally, you'd check "show icon preview" to see the preview.
Has anyone else experienced this? What might have caused it? (I recently downloaded a .doc containing macros, so I'm concerned this might be a security issue)

But you're not getting a preview when you uncheck that box. You're getting the MS Word document icon, which is the same for all .doc files, no matter what the contents. When you show previews, you're actually getting previews... problem is that a preview of a document that's mostly plain text, shrunk down to icon size, doesn't look like much. But you're getting what you asked for at the moment.

Unchecked show icon preview but still showed icon preeviews / ikon preview (thumbnail) can not disable,

Systems and Network
2 iMac Intel i5, 8 GB Ram, 1 TB SATA HDD, Mountain Lion (10.8.5 or 10.8.4 )
1 iMac Snow Leopard (10.6.8)
1 Mac pro Intel Xeon, 6 GB Ram, 1 TB HDD, Tiger (10.4.11)
A few power PC G4 Tiger (10.4.11)
1 Linux SME Server 7.5 (Samba Server)
We are works on the Server(Linux). There ara many pictures and Text Files (tif, jpeg, rtf, doc, txt etc.) in server folders.
     On the 2 iMac (Mountain Lion)
          Text files in the folder have viewed normal(optimum) time. But Pictures in the folder have viewed very slow and very long time.Because showing pictures icon (show icon preview) very slow on the Mountain Lion. We tried List View/ColumnView.We have waited very long time(for pictures in the folder) when we selected a folder every time.
          We unchecked show icon preview but still showed icon previews, icon preview (thumbnail) can not disable, We tried "Finder preferences", "View > Show View Options > Show icon preview(unchecked)" and "Show icon column(unchecked)" but still "Show icon preview(checked)" and "Show icon column(checked)"
     On the Power PC G4, Mac pro or iMac (Leopar/snow Leopar or Tiger)
          Everythings ok. There isn't any problem. Text files and Pictures in the folder have viewed normal(optimum) time
This problem only on the Mountain Lion, on the other OS (Leopar/snow Leopar or Tiger) no problem.
How to resolve this problem?
Best Regards

Good news: I found a solution.
Start iTunes, remove all your voice memos from your library (back them up if you need them), quit iTunes. Restart Finder. Done. I hope that helps!

Don't Show Icon Previews

I've recently upgraded to Snow Leopard from Tiger. Everything has been a little glitchy, but the one thing that is truly annoying me is the Finder will always show Icon Previews. Every time I log in and open a Finder window, I have to go thru the View Options and uncheck Show Icon Previews. The next day, I have to do the same thing, because the Finder does not remember that setting.
I've tried Option-clicking and Command-clicking the check box, but it hasn't made a difference.
Does anyone have any suggestions as to how I can get the Finder to remember that I don't want to see Icon Previews in Finder windows?
A preemptive thanks.

Baltwo, per your suggestion:
I created a new administrator account, logged in, opened a new Finder window, hit command-J, unchecked Show Icon Preview, closed the View Options window, closed the Finder window, then logged out. I logged back into the new account and the settings had stuck. (Yea!?) I did the whole routine with my own account and the settings were reset, with Show Icon Preview checked. Hmm.
So I guess it's some glitch in my user account. Any ideas how to fix it? I'm not really excited about creating a new user and having to set up all the preferences and whatnot, but I guess it might be weighing that inconvenience against the annoyance of the Icon Previews.

Show icon preview in finder problem

the other day when i was using the cover flow in finder to go through old photos finder stopped showing the icon previews for all my photos. toggling the option to show the icon preview doesn't seem to be doing, any idea what might've happened?

2point5 wrote:
If I can hazard a guess it's possibly a memory availability issue given that it has to generate a thumbnail of the images on the fly and may be struggling as you navigate through more and more images.
I've had this same problem for a long time. I thought it must be either a memory or free disk space availability issue because in my case it appears to be brought on by Photoshop CS3. After i use Photoshop for a little while, new icon previews stop being generated entirely, as if they've been switched off.
I now have 7 GB of RAM, with Photoshop capped at 72%. I've tried reducing that percentage and i've moved all Photoshop scratch files to other drives with no change.
I used to be short of disk space on my main drive and i thought it might be a virtual memory issue. But i currently have 32 GB available.
*I bring previews back by using Force Quit to relaunch the Finder.*
Then i have to move all the Finder windows back to the "Spaces" i had them in. 10 minutes later they're gone again.
!http://img228.imageshack.us/img228/5186/scottdartve1.png!

Macbook pro won't show icon previews

Hey there Mac'cers,
Okay so ...at first I could see all my icons/thumbnails etc just fine and when i clicked on them they turned blue...well now I cannot see the preview of the thumbnails/icons and also when i click on them it is grey now not blue and I haven't touched any settings??
HELP!...images are all still there and openable just not showing thumbnails and is rather annoying...
Many thanks
Vanessa...

Hi chuckita,
Welcome to the Apple Support Communities!
I understand that you would like to use your MacBook Pro to mirror to your Apple TV, but you do not see the AirPlay icon. In this situation, I would recommend using the attached article to verify that your MacBook Pro is supported and how to set up AirPlay Mirroring. Please let me know if you continue to have and issue and what steps aren’t working as expected.
About AirPlay Mirroring in OS X - Apple Support
Best regards,
Joe

"Premiere Pro stores the preview files in a folder you can specify" But how?

Specifying a Preview folder
On page 265 of the PDF it states:
Premiere Pro stores the preview files in a folder you can specify.
QUES 1
But how do you specify the folder? I just rendered a test clip and was not offered the option of specifying a folder. And there is no other mention of preview folders in the PDF.
Preview Files for Encoding
On the same page is:
Note: Adobe Media Encoder does not automatically use Premiere Pro preview files for encoding. To make use of the Premiere Pro preview files, you must select the Use Previews option in Adobe Media Encoder for each encoding process.
It is not clear from the PDF what is the quality of these preview files.
QUES 2
If I select the Use Previews option when exporting, aren't I degrading the quality of the export by encoding from an already encoded preview?
QUES 3
For the absolute best quality, should Use Previews be turned off?

Preview File location is determined in the overall Project Settings.
Set this location before you render any Preview Files.
Project > Project Settings > Scratch Disks...
Some documentation regarding the Scratch Disk location is buried here:
Specify scratch disks to improve system performance
QUES 2
If I select the Use Previews option when exporting, aren't I degrading the quality of the export by encoding from an already encoded preview?
In most (if not all) cases... yes.
Previews are intended for real-time playback in the Timeline only.
You should not use previews for export.*
QUES 3
For the absolute best quality, should Use Previews be turned off?
Yes!
*There are a few semi-obscure exceptions to this general rule.

Icon Preview is not shown for mp3 files in finder

Hi. Recently I noticed icons of mp3 files are no longer as used to be in finder. Previously I had a dark music note icon and when i hover my mouse there was a play button. Now I only see itunes icon in mp3 files. "Show Icon Preview" option is enabled, and i can preview image and pdf files in finder. But something happened to the mp3 files. It is very annoying. Please guide me to get back the good old icon preview for mp3 files.

Displaying icons as previews of files
In Finder windows and on the desktop, the icons for files can appear as thumbnail previews of the file contents. For example, instead of seeing a generic icon for a PDF file, you can see a miniature version of what’s in the PDF file. If you “hover” over the icon for a movie or sound file, you’ll see a Play button, which you can click to view the movie or hear the sound. (If you don’t see a Play button, enlarge the icon.)
NOTE:If you’re using Cover Flow view, you’re already previewing files and don’t need to change any settings.
To display icons as previews:
To work with icons in a Finder window, click the Finder icon in the Dock.To work with icons on the desktop (the background area of your screen), click the desktop.
If you’re working with icons in a Finder window, click one of the View buttons in the toolbar to select icon, list, or column view.
Choose View > Show View Options.
Select “Show icon preview.”
If you’re working in a Finder window, you can also set the following options, depending on which view you’re using:
In Icon view: Use the “Icon size” slider to adjust the size of the preview image.
In List view: Click one of the two “Icon size” buttons.
In Column view: To see a larger preview in the adjacent column, select “Show preview column.”
NOTE:The Finder may not be able to show a preview for some files.
Another way to get a quick preview is to select one or more images, and then click the Quick Look (eye) button in the Finder window toolbar, or press the Space bar.
Related Topics
Finder preferences
Previewing files with Quick Look

Finder is crashing when previewing files

My finder keeps crashing when previewing files from an external hard drive. It's mov-files and stills(cr2).
I have files recorded on two separate days. When previewing files day 2 there's no problem but when previewing files from day 1 finder is crashing every time. I have back up of all the files on another drive. On the back up drive there's no problem to preview files.

That is why I want you to erase it.. so you can get access.. but I cannot trial it for you... I do not have one.. you have to trial it yourself.
Setup the TC to use Accounts.. not use disk password or device password.. after an erase.
See if that fixes it.
See this post for different but maybe related issue.
https://discussions.apple.com/thread/5146963?tstart=0

Icon preview not working for occaisonal file

Hi y'all.
I'm using Illustrator CS4 and there is a particular file that I cannot seem to save with an icon preview.
And yes, I've selected pdf compatibility, with no success.
Could it be that I'm resaving an old file that was originally created in Illustrator 10? Could it be related to the use of many patterns?
Any other suggestions?
B.

Hello to both of you. Sorry for the delay in response!
Yes, I've tried doing a "save as" - even to different places on my hard drive.
And yes to the other suggestion: my folder prefs do say show icon preview.
Any other thoughts? Could it have something to do with the patterns I've used? Patterns can do weird things, I hear....
B.

Icon previews - mp4 files

Leopard can show icon previews for mp4 files now. But most of my mp4 files start off with a few frames of blank screen - so my icons (when I choose to display them) are just an ugly little black square.
Anyone know if you can specify a frame of the mp4 movie that you want to use as the icon??
Thanks.

Actually, I've just answered my own question!
A bit long-winded...
Start to play the mp4 in Quicktime.
Pause at a suitably artistic moment in the action.
Shift-cmd-4 to take a selection of the screen and grab it as a file (I have my system set so it grabs it as a jpg.)
Open that jpg in Preview.
Select some of the image and cmd-C to copy it
Cmd-I to open the 'info' on the file in question.
Highlight the icon in the top left corner.
Cmd-V to 'overwrite' that with the image you have just put on your clipboard.
It works! But like I said, it does seem a VERY circuitous route.
Also seems to highlight the fact that you can use any size of jpg image as an icon. Is this something new in Leopard?
Anyway, I'm sure there's a clever person out there who knows how to do this 'properly'...?

Image files no longer appear as "icon preview"

Previously I could view all my .png image files in the "icon preview" mode in Finder.
I must have accidently changed some setting where I can no longer view .png files in the "icon preview" mode. I just get the generic .png icon to appear in finder. I have the "show icon preview" item checked in view options, and most other image files appear as icons...just not the .png files.
Any thoughts? Thanks.

You could have turned "show icon preview" off and set that as a default.
In a folder with images, set to "icon" press command+j and make sure that "show icon preview" is ON.
If it's ON and still no luck, turn it off, close the folder, reopen and try again.
It seems that some images have previews in them (from Photoshop or similar) and will show previews even with the above option set to off. Others need the option to be ON.
Also, what do you see if you select one of the preview-less images and hit the s p a c e ?

Icon images not previewing file content

I installed Leopard on MacBook Pro and on a G5 iMac. On the latter computer, the desktop file icons (iWorks document and others) display a preview of the document, but on the MacBook Pro, the icons display an image of the application. Minor issue, but I would like to understand why.

Some possible answers.
Firstly, you have checked that the desktop folder and any other relevant folders on the offending machine have their view options set to show icon preview?
Secondly, some files are given icons by applications that do not create a preview. In these cases the preview creation can be triggered by deleting the existing icon in the getinfo window. (That will not be the problem with iwork however).
Thirdly the previews are graphics intensive and, particularly if there are a lot of them, the system has to display at once it can struggle (or sometimes if files are tossed quickly onto the desktop I have experienced the finder needing to be prompted to redraw the desktop before the preview icons appear). It may be that your MacBook's graphics card is not handling Leopard's graphics as well as it might.

Disable / Turn off Thumbnail / Icon Preview in Finder?

Can't find any new/recent posts to solve this issue. I want to disable/turn-off the little icon preview in finder.
I have to access a lot of images on a server at work. Image files(jpeg, eps, tiff, psd, ai, ect) that are typically 50MB and higher. So you can only imagine the amount of lag I get and the time I waste every time I click on a folder in list view.
Is there any way to disable it? Just have it show a standard icon file type instead of it loading 100+ 8MB images in little tiny icons?
I've already tried the View -> Show View Options -> unchecked 'Show icon preview' and applied it as 'Use as default'
Its turn off for all folders but it is still loading the mini icon preview.
(I'm on a Mac Pro - Mountain Lion)

I've tried reinstalling Mavericks and I'm still having this issue. I'm considering wiping my drive and going back to Mountain lion. Qucktime player in Mavericks seems to suck. I'm having several other issues playing back older quictime files. Most play in Quicktime 7 but a lot have no quicklook previews. The sheer volume of prores files I shoot makes this extremely inconvenient for me. How can Apple not support their own Codec????

Prev "previewed" files in 10.6 dont scale via "show icon preview" function

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