XnView Software

... out jpeg -truecolors *.gif

Convert JPEG files to GIF files
nconvert -out gif -dither -colors 256 *.jpeg

Convert with a resize
nconvert -out png -resize 510 230 *.jpeg
nconvert -out png -ratio -resize 510 0 *.jpeg
nconvert -out png -ratio -resize 0 510 *.jpeg
nconvert -out png -resize 200 ...

... in XnView MP on Linux.

For testing purposes, I have prepared the following two images.
These are screenshots taken on each OS and encoded from PNG into JXL using cjxl.

test-images.zip

Since jxl cannot be attached, I attached it as jpeg here.
The test jxl images are included in the zip file ...

... this may be irrelevant to non-Mac users, but if you are interested, I created this Liquid Glass icon for macOS 26+. I am providing both .icns and .png files. Feel free to use them in any way you see fit. My dream would be for a design similar to this - not necessarily my exact version - to become ...

Thanks, I've just tried it.
With this version there is no difference in speed now when switching between PNG and TIFF files.
So images of different formats are now switching with the same speed I would say.

But there is still difference in speed when switching in browser mode compared to dedicated ...

... and display it as though it was the preview of the model file.

The separate thumbnail file would be stored as a common file format (jpg or png) and I do not wish to implement decoding for jpg or png in my plugin. Ideally my plugin would just delegate to an existing filetype's loader after ...

... Now every Windows machine has these fonts installed and they are much better rendering font than Simsun.

If you want a screenshot of current behavior in Xnview, I can attach it here: https://i.imgur.com/XiJIJv8.png

Also "无标题" rendered in explorer, using "Microsoft Yahei UI": 1.png

Thank you.

Yes! I didn't know it's possible to enter fullscreen from a tab.
So yes - the issue (slow switching to PNG images) is there if I enter fullscreen from browser.
And if i open any image in an image tab - the switching is then super fast, both in tab mode and also if i enter fullscreen from that tab by ...

It's the same speed, please send us your xnview.ini
For me it is not.
Try switching between png and tiff forward and backwards multiple times.
It switches fast to tiff, and much slower to png.
Here is the ini file: https://filebin.net/jfnam620h4r32np7
But on my system it is the same with clean 1.9.4 ...

... image in fullscreen by pressing F11. Then use left and right keys to switch between two images (right, left, right, left, ...) - observe delay for PNG files even for second and further switches. Then do the same for two provided TIFF files and see that switching is much faster.

It's the same ...

... I obviously did not try all formats, but for those I'm interested in - it is fast for JPG, TIFF, PSD and RAW (builtin preview), and is slow for PNG. Which is quite strange, because my TIFFs and PSDs are often 16-bit/channel in ProPhotoRGB colorspace, while PNG is 8-bit/channel in sRGB - so much ...

... for pictures is the freeware app fossify gallery for android.
You can download it from google playstore. It supports HEIF/HEIC, AVIF, JPEG-XL, JPG, PNG, GIF, etc.

Fossify gallery has its own picture/video codecs. That will be a big advantage, if your android version does not support the picture ...

Sorry, I did not answer.

My prefered settings for JPEG-LI are:

tld wrote: Tue Jul 15, 2025 5:14 am

masterjp wrote: Tue Feb 25, 2025 6:35 pm Here are my recommend settings for JPEG-LI encoding:

settings.png

Can You post it in bester quality?
I can Not recognize the settings

... helpx.adobe.com/elements-organizer/using/search-based-visual-uniqueness.html

https://new.imagehostx.com/upload/2025/09/30/HDxDmQV_1759224741.png

https://new.imagehostx.com/upload/2025/09/30/nvQSDyZ_1759224756.png

I would like to address the developers of XnView. Your software is of very ...

... configuration are being correctly applied to the generated NConvert script.

nconvert -out webp -q -1 "C:/Users/McBlu/OneDrive/Bilder/dissolution.png"
nconvert -out webp -q 100 "C:/Users/McBlu/OneDrive/Bilder/dissolution.png"
nconvert -out webp -q 90 "C:/Users/McBlu/OneDrive/Bilder/dissolution ...

you can remove system Edit command from file extension in windows registry, eg
1. HKEY_CLASSES_ROOT\SystemFileAssociations\.png\Shell\Edit\command
2. delete data in (Default) string, eg
C:\Users\<USERNAME>\AppData\Local\Microsoft\WindowsApps\mspaint.exe "%1"