Questions tagged [thumbnails]

Thumbnails are reduced-size versions of pictures/videos/PDF's, Used to help in recognizing and organizing them.

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37 votes
5 answers
16k views

How can I instruct Nautilus to pre-generate thumbnails?

I have a large library of PDF documents (papers, lectures, handouts) that I want to be able to quickly navigate through. For that I need thumbnails. At the same time however, I see that the ~/....
15 votes
3 answers
6k views

Nautilus: Show image thumbnails at more than 200% size

I would like to delete some images with nautilus. I increased the size to 200%. My monitor has a high resolution and the image are too small for me. I would like to increase the size even more, but ...
guettli's user avatar
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19 votes
3 answers
5k views

How to set the first picture of every folder as its folder icon?

If there are pictures in folder A, B, C.....Z, how do I automatically set the first picture in each of these folders as its folder icon? Is there a way like a script or something else?
JulianLai's user avatar
  • 1,572
10 votes
2 answers
8k views

What additional thumbnailers are available and how do I install them?

Question: Ubuntu's file manager, Nautilus, comes with a wide support for file previews. These thumbnails are handled by helper programs called thumbnailers. The number of thumbnailers that come ...
Glutanimate's user avatar
  • 21.4k
7 votes
4 answers
9k views

Can't generate thumbnails in Nautilus

Before I upgraded to Ubuntu 12.04, thumbnails on video files worked nicely, after the upgrade, thumbnails aren't generating on video files and only on video files, most of them are .mkv files. I have ...
Paul Dirac's user avatar
44 votes
3 answers
26k views

What is safe to exclude for a full system backup?

I'm looking for a list which paths/files are safe to exclude for a full system/home backup. Considering that I have a list of installed packages. /home/*/.thumbnails /home/*/.cache /home/*/.mozilla/...
seb's user avatar
  • 2,341
43 votes
6 answers
70k views

Thumbnails not showing in video in Ubuntu 18.04

I have Ubuntu 16.04 LTS and I've manually installed Ubuntu 18.04 LTS. Everything looks fine except video thumbnails. How to solve this?
Vikas's user avatar
  • 513
8 votes
1 answer
7k views

How to create custom thumbnailers for Nautilus, Nemo, and Caja?

Nautilus (GNOME Files) and Nautilus-based file managers, namely Nemo and Caja, already create previews for many common file types with their default thumbnailers. There are also a number of other ...
Calico Cat's user avatar
  • 1,296
20 votes
2 answers
12k views

How to stop Nautilus from creating thumbnails of specific file types?

I'm trying to stop Nautilus from creating thumbnails of PDF files. In another thread on 'Ubuntu forums' someone said to open gconf-editor and disable the PDF entry in the '/desktop/gnome/thumbnailers' ...
RADXack's user avatar
  • 461
19 votes
2 answers
7k views

Nautilus not generating thumbnails for GIF images

No matter what I try (changing the preview options, deleting the thumbnail cache, etc.), Nautilus in Ubuntu 15.04 does not generate thumbnails for GIF image files. However, it generates a thumbnail ...
Slaci's user avatar
  • 464
10 votes
2 answers
3k views

Generate thumbnails for text?

I need to generate thumbnails for some text files. Obviously the system somehow has the ability to do exactly this (see the screen shot). Is there any way I can access these images and just copy them ...
user10607's user avatar
  • 337
8 votes
3 answers
2k views

Custom thumbnailers don’t work on Ubuntu 18.10 and 18.04

Recently I had a bunch of my own scripts for the thumbnails in Nautilus: WebP previews, sound waveforms, office documents and so on. Seems like either I’m doing something wrong (thumbnail generation ...
Sasha MaximAL's user avatar
38 votes
3 answers
57k views

How do I reset the thumbnail cache?

I have a lot of images on my laptop as I work in graphics. On the same system, I also have a folder containing my family pictures. I would like to do two things: Empty the already cached images and ...
Allan's user avatar
  • 11.6k
37 votes
6 answers
33k views

Why doesn't Nemo preview thumbnails?

I have a problem with thumbnails on my Ubuntu 12.04 LTS 32-bit system with Cinnamon 2.0.14 DE and Nemo 2.08. I have tried removing the ~/.thumbnails directory but it is not working for me. This is ...
user228862's user avatar
16 votes
4 answers
29k views

Dolphin does not show thumbnails

I have changed my Unity default file manager to Dolphin. Problem: video thumbnails don't show up anymore. In Nautilus the thumbnails are shown correctly. How to make Dolphin show thumbnails?
rofiquzzaki's user avatar
11 votes
3 answers
8k views

How to make Thunar regenerate thumbnails?

I have a large collection on pictures which needed cropping, color balancing, autotuning, etc. Now Thunar is showing the old thumbnails and is very confusing because i can't visually separate edited ...
ipse lute's user avatar
  • 2,574
9 votes
2 answers
4k views

No file preview while opening an image in 22.04

In 21.10, when I try open a file, I could see a thumbnail preview on the right. This was true with Firefox, GIMP and Inkscape. Sadly, after upgrading to 22.04, all I got are file names and an image ...
user227495's user avatar
  • 4,069
3 votes
2 answers
2k views

What are my options to replace Gnome 3's Nautilus in the least intrusive way?

I use stock Ubuntu 20.04.2 with the Gnome 3.36.8 desktop (according to gnome-control-center's About tab). Nautilus version: 3.36.3 Dismay: I have a hard time organizing my photos in Nautilus, because ...
Levente's user avatar
  • 3,953
17 votes
2 answers
4k views

show thumbnails in file chooser dialog

is there any way to show thumbnails in file chooser dialog in ubuntu or in any other distro ?
this is me's user avatar
12 votes
1 answer
17k views

How to disable thumbnail generation?

For privacy and security reasons I want to disable the generation of any thumbnails in the ~/.cache/thumbnails folder (using Ubuntu 14.04 LTS). I already tried this (without success): In the ...
solution's user avatar
  • 121
11 votes
5 answers
5k views

How to regenerate a specific thumbnail in Nautilus?

Sometimes I crop PDFs in order to have a one-page reading instead of a scanned two pages. However, nautilus keeps an old thumbnail showing the former front page. I know that I can delete the hidden ...
Ed Villegas's user avatar
  • 3,413
9 votes
3 answers
9k views

How to get bigger photos' thumbnails in Nautilus?

Today I wanted to go through my photos collection but I have realised that it is quite difficult to go through thumbnails in Nautilus as it is using the free space in the window very inefficiently, e....
Patryk's user avatar
  • 9,136
8 votes
1 answer
7k views

How can I use ffmpeg to output a screenshot gallery / mosaic?

I am wondering how to use ffmpeg to create video thumbnails something like this (taken from a VLC forum): I know totem can do this but totem does not support the video format that I am using This ...
Levan's user avatar
  • 10.9k
7 votes
1 answer
1k views

Different nautilus thumbnails rendering for text files

I have Ubuntu 14.04 Gnome edition on both my laptop and the desktop; both are up-to-date but they have a different past-history of installations and upgrades. Now, text-type thumbnails are different ...
Rmano's user avatar
  • 31.9k
7 votes
1 answer
3k views

Dolphin's "Show previews for" blank

I installed Ubuntu 16.04 and installed dolphin (15.12.3) + FFMpegThumbs so that I can see thumbnails of videos but when I went to the previews the box was just blank.
jimbob1986's user avatar
7 votes
3 answers
12k views

File manager in Ubuntu 20.04 not showing thumbnails

The file manager that came with my installation ("Simple file manager for Gnome") doesn't show thumbnails for jpg, png, and videos. I've gone to /Preferences/Search & Preview and made ...
Axel Lieber's user avatar
7 votes
3 answers
4k views

My video (.mkv) thumbnails are green (or monochromatic)?

When I installed Ubuntu Gnome 17.04 thumbnails for .mkv were not showing up at all, Then it automatically got fixed, now it's generating the Thumbnails but as weird as it may sound, they're all green (...
Sumeet Deshmukh's user avatar
6 votes
4 answers
2k views

Missing Thumbnails for .swf files in Nautilus?

Before I upgraded to Maverick, .swf files used to have a thumbnail in Nautilus. However, Nautilus doesn't generate thumbnails for them anymore, even after removing ~/.thumbnails/, which most likely ...
user avatar
5 votes
1 answer
1k views

Is it possible to preview arbitrary formats in Nautilus?

I recently found out that Nautilus (Ubuntu 12.04 at least) can show thumbnails of files of non-image formats, for example (data grapher) grace files (.agr) shows a small version of the graph contained ...
alfC's user avatar
  • 3,604
5 votes
5 answers
5k views

Nautilus not generating thumbnails in 13.10

Like the title says, Nautilus is not generating thumbnails for any file types (pictures, documents, pdf, etc) after a clean install of 13.10. I have checked the preferences and it is set to always ...
user212582's user avatar
4 votes
2 answers
978 views

What rendering engine does Nautilus use to show HTML previews/thumbnails?

I just noticed that HTML files with CSS transforms on elements show with the CSS transforms within the thumbnails on Nautilus. So what rendering engine does Nautilus use to generate the thumbnails for ...
Mussnoon's user avatar
  • 5,046
4 votes
2 answers
2k views

Ubuntu file manager is not showing proper icons

All files of a code language, particularly python, do not display the proper file icons but instead look like text files - this only happens when the file contains some text. As you can see the ...
Tactux's user avatar
  • 166
2 votes
2 answers
393 views

How to add space to Exec path in a Thumbnailer description?

I wish to use mplayer to generate thumbnails for nautilus, so I wrote a perl script as the thumbnailer named "gnome_thumbnailer_with_mplayer", and wrote a description in /usr/share/thumbnailers to ...
allfox_五月's user avatar
0 votes
1 answer
867 views

How to fix tumbler: random image thumbnail sizes in Thunar

Premise OS: Ubuntu 20.04.2 DE: Gnome 3 gnome-shell --version: 3.36.7 In normal circumstances, I prefer not to re-generate thumbnails too often, in order to spare some lifespan for my SSD. org.gnome....
Levente's user avatar
  • 3,953
20 votes
11 answers
46k views

Why I can't see the thumbnails in Nautilus?

Problem Loading Thumb Previews: This started to happen after upgraded Ubuntu from 12.04 to 12.10.
Vishnu Bathala's user avatar
18 votes
2 answers
24k views

Way to make video-thumbnails generate from VLC instead of Totem?

I'm suffering from problem that video-thumbnails do not appear in nautilus for some video files. I just found this bug typefinding: some mpeg files are not identified as mpeg files which seems to ...
nick's user avatar
  • 181
13 votes
2 answers
13k views

Thunar Disable video Thumbnails only

Is there a way in Thunar (within XFCE) to disable displaying of Video thumbnails only and still allow Picture thumbnails? I found this thread: Show me only picture thumbnails But that is for ...
jfreak53's user avatar
  • 1,022
10 votes
2 answers
11k views

LXDE: PCManFM Thumbnails of images > 2MB are not shown

Im using LXDE, with PCManFM but images bigger than 2MB are just shown with image-symbol and not with the thumbnail. How Can I change that behavior?
Paul Woitaschek's user avatar
8 votes
1 answer
4k views

HEIF/HEIC Thumbnail issue

I have an issue with HEIC thumbnails. I can open heic files via the image viewer, however, I can't get the thumbnails showing. when I try installing heif-thumbnailer by running sudo apt-get install ...
ultranewbie's user avatar
8 votes
4 answers
6k views

how to stop saving thumbnails in ~/.thumbnails

File manager keeps thumbnails in ~/.thumbnails even after the original photo is deleted. It's really annoying and I feel like it's insecure if some one can see a photo that I've deleted. I want this ...
Srinesh's user avatar
  • 327
7 votes
1 answer
4k views

Why is Nautilus listing so slow when showing thumbnails?

I have a folder with thousands of photo on it. Every time I enter the folder (even in the same Gnome session) Nautilus start showing the icons (thumbnails) for that folder but the listing is very slow....
David's user avatar
  • 71
5 votes
1 answer
1k views

command line thumbnailing

I have a whole folder of photos I want to look at as thumbnails, and I'd like to do it by calling one of GNOME's native thumbnailers individually, namely totem-video-thumbnailer or evince-thumbnailer, ...
ixtmixilix's user avatar
5 votes
1 answer
9k views

How to repair corrupted JPEG files that still have their thumbnails?

I've got a bunch of photos that were on an SD card. Most of them are corrupted now and I cannot open them in any program (Gwenview, GIMP, same on Windows...). But every file browser can still ...
A. Ocannaille's user avatar
5 votes
1 answer
2k views

Nemo / Nautilus folder icon size

Does anybody know how to reduce this white space - distance on nemo or nautilus between the folders? It's getting ridiculous! I've enlarged the thumbnails from dconf-editor and I also use compact mode,...
Fivos's user avatar
  • 93
4 votes
1 answer
779 views

Prevent Nautilus from displaying thumbnails on a specific mount

I have written a filesystem over Fuse to access a remote pseudo-NAS (the French "Freebox V6", I'll soon publish it as GPL3... when it's a little bit more polished!). The NAS is connected to a home ...
Zakhar's user avatar
  • 151
4 votes
2 answers
5k views

Show me only picture thumbnails

Is it possible in nautilus that it shows thumbnails only for pictures and for all others like videos, pdfs, etc thumbnails are disabled?
wedu's user avatar
  • 400
4 votes
4 answers
3k views

How to make Nautilus display .psd thumbnails?

is it possible to make Nautilus display Photoshop .psd files thumbnails when viewing files in the list? If yes, what are exact steps to make it happen. Had been searching this in google, no luck so ...
Maris's user avatar
  • 263
4 votes
2 answers
3k views

Caja only shows images and icons preview when root

I'm looking for the solution to this error for some time . I did not find anywhere. Caja could only see the icons of the images and videos when at root. How can I enable this functionality in normal ...
Vítor N. Schaeffer's user avatar
4 votes
1 answer
3k views

PDF thumbnails are missing in Dolphin

I can't find out how to enable Pdf previews in Dolphin 15.08.2, is it possible in this new version? kdegraphics-thumbnailers is installed and uptodate
Dylan's user avatar
  • 51
3 votes
1 answer
464 views

Thumbnail creation in Nautilus fails

I've tried to create a thumbnailer for Nautilus for PSD files with this configuration in /usr/share/thumbnailers/psd.thumbnailer And the following content: [Thumbnailer Entry] TryExec=convert ...
A.B.'s user avatar
  • 90.3k