XnView Software

Hi everyone,
I have been using Nconvert for many years.
I am building now a tool that converts many of the known image formats to a jpeg preview.
I need help with the following:
- commands for each of the file formats..
- how to install all the third party plugins used by Nconvert on Linux to handle files like Webp...
- what is the ideal preview format: jpeg or png?
is someone interested to document all this, or jump on a call?
this job off course will be chargeable.
thanks

jmhabis wrote: Sat Jan 07, 2023 10:20 pm - commands for each of the file formats..

What do you need?

- how to install all the third party plugins used by Nconvert on Linux to handle files like Webp...

you can use plugins for XnView MP x64

- what is the ideal preview format: jpeg or png?

jpeg is good but lossy

hi Pierre,
hope all is well. I tried emailing you but you seem busy.
for the plugins, I need to know how to install them. any documentation?
I need a general command to convert most of the image formats (Webp, PSD, TIFF ) to jpg. I am sure there are some comands that can be different. for example I am not succeeding to convert png to jpeg. not sure if I need a plugin..
thx

jmhabis wrote: Mon Jan 09, 2023 11:04 pm for the plugins, I need to know how to install them. any documentation?

Only copy the Plugins folder where you have nconvert.exe

I need a general command to convert most of the image formats (Webp, PSD, TIFF ) to jpg. I am sure there are some comands that can be different. for example I am not succeeding to convert png to jpeg. not sure if I need a plugin..
thx

could you post an example of picture that failed and the command?

libpng warning: iCCP: known incorrect sRGB profile
Error: This picture cannot be written using this format (./images/different_Images_Format/a.jpg)

jmhabis wrote: Mon Jan 16, 2023 10:02 pm libpng warning: iCCP: known incorrect sRGB profile
Error: This picture cannot be written using this format (./images/different_Images_Format/a.jpg)

which file and which command do you use?

attached is the file
nconvert -q 50 -overwrite -rexifthumb -ratio -icc -rflag orient -resize 1000 1000 -out jpeg -o ....

jmhabis wrote: Mon Jan 16, 2023 10:02 pmlibpng warning: iCCP: known incorrect sRGB profile
Error: This picture cannot be written using this format (./images/different_Images_Format/a.jpg)

There's an issue with libpng, Pierre: search.php?ch=0&keywords=iccp+incorrect

so no solution for this. right?

please use