Thumbnails are reduced versions of objects, mostly images, that are used to quickly display a small and recognizable representation of the object.

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32
votes
4answers
16k views

Meaningful thumbnails for a Video using FFmpeg

FFmpeg can capture images from videos that can be used as thumbnails to represent the video. Most common ways of doing that are captured in the FFmpeg Wiki. But, I don't want to pick random frames at ...
4
votes
1answer
5k views

How to change which frame is grabbed for the finder icon of a movie file for Mac OS X Finder?

Movie files show in Mac OS X Finder with an example frame from the movie. Unfortunately, it's captured from fairly early in the movie, so that different episodes of a series, or perhaps different ...
12
votes
8answers
25k views

Windows 7 64-bit PDF thumbnails problem

I cannot see thumbnails of PDF files on Windows 7 64-bit. Is there any solution to this problem?
0
votes
1answer
53 views

Forcing thumbnail preview for custom file format

Related question: Explorer image thumbnail association A CNC scripting program I use generates BMPs as thumbnails and then appends them in front of the scripts themselves. Changing the file extension ...
2
votes
0answers
15 views

ffmpeg thumbnailor with timecode in filename

i have many videofiles and i want to make one thumbnails every 20 seconds. This is what i have now: for %%a in ("*.*") do ffmpeg -i "%%a" -f image2 -vf fps=1/20 "index\%%~na_IMG-%%05d.jpg" now i ...
9
votes
3answers
2k views

Make Thumbnail from video

How can I make a simple capture from a video. Preferably from the command line? Idea: take 9 snapshots for 9 even placed (on the timeline) times, and save them as JPGs Example: Movie length = 10 ...
7
votes
3answers
13k views

Windows 7 taskbar groups to use vertical menus only, not thumbnails?

I frequently have 10 or more windows of the same application (e.g. Outlook, Word, IE, etc.) open at one time. Windows 7's new taskbar grouping thumbnail feature shows a preview of open windows (aka ...
7
votes
6answers
57k views
0
votes
3answers
62 views

How to delete empty folder with thumbs.db without disabling thumbnails

I often have problem to delete a folder that contains a thumbs.db file. Also tools like "unlocker" fail. It seems to be loccked by os for some unknown reason. The only solution i found in the net was ...
0
votes
0answers
22 views

Different Sized Thumbnails Under Same View?

Occasionally I'll convert a video file format and it comes out having a different sized thumbnail from all the rest of the files in the folder. I've tried changing the view size of the folder to ...
0
votes
0answers
414 views

Windows Explorer won't show image thumbnails when using Remote Desktop

When I connect to my home Windows 8.1 server via RDP (using another win 8.1 computer) and open Explorer to show some folder containing images, I can't get it to show the actual thumbnails, only this: ...
0
votes
1answer
34 views

Can't View Thumbnails when trying to open JPEG files

In Photoshop, I put in a CD with my images, when I try to select a file, I can't view the thumbnails. Only the Photoshop icon! It showed the actual picture before, and all of a sudden it stopped! ...
2
votes
4answers
4k views

How to create a thumbnail from the middle of a video with FFmpeg

Is there a way to grab a video thumbnail in FFmpeg? I'd like to grab the middle-most frame as the video and use that as the thumbnail. Video duration is unknown. The ability to specify the ...
0
votes
1answer
51 views

Skip parts of video while converting it to images with ffmpeg

I use this command on ffmpeg to convert a video into images: ffmpeg -i video.mp4 -q:v 1 -r 1 -f image2 frame-03d%.jpg What I want to do is to skip the first x seconds and the last y seconds of the ...
0
votes
1answer
165 views

Disable Windows 7/8 Alt+TAB *preview* (entirely)

When Alt+TAB-ing Windows shows a list of icon previews, and, after a second or so, shows the actual window selected behind this list (a feature called Aero Peek). I just want to see that window ...
4
votes
3answers
3k views

Is it possible to “preload” all thumbs.db files in a directory?

Kind of a weird question I guess :p Was just curious to if there is a way I can preload all thumbs.db files in directory (and its sub-directories) so that when I visit those folders later in explorer ...
0
votes
1answer
49 views

Disappearing program thumbnail on taskbar

I have a problem - when I hover mouse on icon of program/folder in taskbar, then the thumbnail shows, and when I hover mouse on the thumbnail, all that program's thumbnail disappears, and current ...
17
votes
6answers
18k views

How to get SVG thumbnails in Windows Explorer?

I can open them in browser just OK, but how can I have thumbnails in the Windows Explorer? Edit: I installed Renesis Player as suggested by this answer, but it does not work for me, probably because ...
30
votes
5answers
167k views

Windows 7: Image thumbnails fail to appear

All right, I've got a pretty strange one here. Since I installed Windows 7 on this machine some time ago, image thumbnails have never worked properly. For the vast majority of images, they ...
1
vote
0answers
84 views

Fixing broken thumbnail previews

I'm not 100% this is the right place to post this, so please let me know if so. A while back I had to develop a custom thumbnail preview for a file format for a piece of software I was working on. I ...
5
votes
4answers
339 views

How to automatically create Windows thumbnails recursively?

I am using Windows 8.1 with Windows Explorer. The image cache ("thumbs.db") is created when I visit a folder containing video, photo, or other such files. I have a problem with this because I have ...
0
votes
0answers
56 views

Office 2010 documents thumbnails does not show in windows explorer

There is an option in all office 2010 software to save the document with a thumbnail view to identify it over windows explorer. just I check save thumbnail in the save dialogue box. This option work ...
1
vote
2answers
1k views

FFMPEG does not have fps filter. How to fix it?

I am trying to user fps filter to take thumbnails but it gives error: No such filter: 'fps' I checked the list of filters using ffmpeg -filters and fps was not there. How to install it or fix ...
7
votes
1answer
975 views

Is there a way to add expandable thumbnails to an MS Word document?

I want to add pictures and screenshots of a web page to a document in Microsoft Word 2007. The problem is, when I add them to my document, they occupy a lot of space and don't leave much room for ...
8
votes
3answers
9k views

Why is Thunar not creating and showing thumbnails of images?

Thunar is my main file manager. Normally it automatically creates thumbnail images of all images in the directory being viewed. After experimenting with other Linux distros then installing Arch ...
3
votes
6answers
6k views

Windows 7 taskbar thumbnails fail to appear

Several hours after each boot the Windows 7 taskbar thumbnail popups stops appear. Click the currently opened window (it should not be a group of windows) - it will collapse. Than hover the mouse ...
0
votes
2answers
217 views

Windows 8.1 thumbnails looking destroyed

I found some thumbnails of jpegs and even folders containing them looking kind of destroyed. What is this? A sign that my hard disk is near of its end? I also realized that changing the size of the ...
0
votes
1answer
421 views

how to fix ffmpeg inaccurate time stamp that corrupts thumbnail generation

So this is intreasting i recieved a video upload today with a time stamp of over a hour when i checked the video its only 8mins long. "C:/server/ffmpeg/bin/ffmpeg.exe" -i ...
0
votes
1answer
62 views

Windows preview multiple thumbnails abnormal behaviour can't select the task

E.g. there are multiple instances of Windows Explorer. Hovering on taskbar icon to show multiple thumbnails becomes unstable, it takes some time to move mouse to see thumbnails. However, certain ...
5
votes
2answers
4k views

Can ImageMagick make thumbnails from video?

I'm trying to extract thumbnails from video via ImageMagick. I found some samples from their official site, but it makes GIF, not PNG. I want a solid thumbnail though. Can it create the same output ...
2
votes
1answer
195 views

How to create custom thumbnail cover of a video?

I wish to create a custom thumbnail of my movies and other video, just like the one used by TED talks. The example below will illustrate, the video on the right handside is one of the video from TED, ...
0
votes
1answer
68 views

No images’ thumbnails on network disk

I bought network disk to build private cloud photo-archive. Unfortunately, there are icons instead the thumbnails in the Windows Explorer. I read some hints how to check these setting via Folder ...
2
votes
1answer
149 views

Firefox : How to reset the new tab's tiles

I am using Firefox 34 on Ubuntu 14.04 LTS and when I press open a new tab it shows the most visited sites in a "tiles" format. Unfortunately for some reason the thumbnails of the tiles don't show ...
54
votes
8answers
49k views

Disable or delay Alt+Tab Aero Peek effect in Windows 7

In Windows 7 pressing Alt+Tab shows the transparent windows (Aero) effect. The screen change is distracting while I'm trying to figure out which window to switch to based on the thumbnail preview ...
5
votes
4answers
38k views

Fix image previews and thumbnails in explorer on Windows 7?

Image files used to show as thumbnails in the explorer window, and a larger preview could be seen in the preview pane (alt+p). Now for some unknown reason, I just see a default image icon in both the ...
1
vote
1answer
262 views

How to set custom thumbnail to a file in Windows Explorer?

Is it possible to set custom (any image) thumbnail to a file (on per-file basis) in Windows File Explorer? Suppose I would like to assign real book cover image to e-book in *.txt format.
3
votes
3answers
829 views

How do I prevent LibreOffice saving the file with the thumbnails?

I am using LibreOffice 4.0 on Windows 7 and I have noticed that it saves files (for example Writer) with a preview. (The icon of the file shows what's inside it, it looks like a page). How do I turn ...
0
votes
4answers
8k views

How do you create square thumbnails for a set of images (with Photoshop?)

I want to create a gallery of images, but for the thumbnails I want them to be all one size (square or rectangular). Some of the photos are portrait and some to be landscape - but for I want the ...
1
vote
1answer
791 views

PDF thumbs not showing in Explorer

I'm running Windows 8.1 Pro 64 bit At some point I stopped getting thumbs for my PDF files in Windows Explorer. I suspected that some thumb cache size may be involved as I have huge collection of ...
0
votes
1answer
244 views

Show picture of choice as folder thumbnail

I have lots of folders full of images from family events and it seems vista picks the worst one to show me whats in there. I usually cant tell from the image what the set is and some folders have ...
1
vote
2answers
961 views

How to generate thumbnail from .eps and .ai files?

How can I generate thumbnails from .eps and .ai (and .psd)? files and save them as a picture?
2
votes
3answers
6k views

Delete or reset thumbnails in Windows 7

I was looking in a folder while downloading a batch of images. About 1/4 of the images have bad thumbnails (its mostly or partially grey). How do i reset/delete them? I tried being clever and moved ...
0
votes
1answer
696 views

How can I make the thumbnails in a window xp appear to bigger in size?

How can I make the thumbnails in a window xp to appear bigger in size? I am a designer, it would be best to quick glances over a bigger thumbnails, as what windows xp default thumbnail size is.
1
vote
0answers
313 views

Thumbnail do not appear for office documents

The thumbnails for all Microsoft office (2010 pro) files quit working. They show the type (word, excel, etc) icon but not a thumbnail of the actual document. All other icons (pdf,etc) that show live ...
0
votes
1answer
123 views

Why there are JPEG files with weird file names in folders with videos

Windows 8.1: 64-bit. Since couple of days I see that that in every folder containing a video[s], found a JPEG file with a weird name followed by a file name of a video in the folder. + Is that ...
7
votes
4answers
29k views

How to enable thumbnail previews for my non-standard (mp4 avi mov mkv) video files in Windows 8?

I've installed the default VLC player to decode my .mp4 files but I'd like to enable a thumbnail view in the explorer. All I see at the moment is the traffic cone (the default icon for files ...
12
votes
3answers
15k views

Can't see PNG previews in Windows 7?

I´m using Windows 7 x64. I can see the .jpg, .gif, etc. preview thumbnails but if .PNG, I only see the generic image, and not the image preview like in the other formats. What can I do to fix this?
-1
votes
2answers
10k views

Thumbnails not showing, cannot preview images, sometimes folders do not show up at all

When I try to preview images, nothing happens. Sometimes, all/most thumbnails do not show a preview and only show up as an icon. Sometimes when I open 'My Computer' or 'My Documents' etc. the ...
2
votes
0answers
831 views

Force Windows 7 to store thumbnails locally

I want Windows 7 to store thumbnails cache files in the same folder as the files (thumbs.db) instead of using the centralized location for all thumbnails (By default ...
-1
votes
1answer
3k views

How to reset thumbnails in windows 8

I changed the album art of an audio file inside a folder using a id3 tag editor. But the folder thumbnail still shows the old album art. I tried to clear thumbnail cache using system cleanup, But i ...