Problem with unicode filenames

[herb]

Hello Pierre,

On my Windows 10 system I work with Nconvert version 7.136 to convert images to *.jpg images.
Using filenames with unicode-characters I have seen the following problems for the following command:

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nconvert.exe -half_res -ignore_errors -thumb 1920 1920 -overwrite -out jpeg -o OUTPUTFILENAME-without-extension SOURCEFILE

For command with - e.g. a psd image
(1)
OUTPUTFILENAME-without-extension == images三山_1828_2_prvws - (all values seen inside debug)
with: 三山 == chinese characters 三山
the result is: Can't open file (F:\\Work_Eixm\\EIXMTEST\\images\011\116\161\134.psd)

(2)
OUTPUTFILENAME-without-extension == images\011\116\161\134_1828_1_prvws
with \011\116\161\134 == chinese characters 三山
the result is: Can't create file (C:\\Users\\herbert\\AppData\\Local\\Temp\\images??_1828_1_prvws.jpg)

Case (2) shows that Nconvert supports unicode filenames, because it could open the source-file.

My question now is: How to send unicode-characters to Nconvert?

Best regards
herb

[xnview]

I work on a version with unicode support, do you want to try it?

[xinni]

Hello,

is there still an issue with unicode and nconvert?

Is seems, nconvert does or can not open a file with U+1F579 char.

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C:\test\NConvert\nconvert.exe -keepfiledate -size 256x256+0 -ratio -rtype lanczos -rflag decr -icc_ie -ignore_errors -overwrite -out jpeg -v "D:\test\Joystick 🕹 Test\testdatei.png"
** NCONVERT v7.230 (c) 1991-2026 Pierre-E Gougelet (Jan  9 2026/17:17:32) **
** This is freeware software (for non-commercial use)

##########################Files opened: 0
Files written: 0

IIRC, there was a time, where we could download a special unicode version of nconvert, but I can not find it on the download pages anymore. Which does not mean, it does not exist there 8-]

[xnview]

is there still an issue with unicode and nconvert?

do you use the unicode version?

[xinni]

do you use the unicode version?

If you don't know it, how would I know it?

Clearly, I assume, you are more able to recognize it in the snipped I provided.

[cday]

NConvert Unicode versions can be downloaded here along with other earlier versions...

And looking again, also on the NConvert forum new version announcement post.

[xinni]

Thank you very much, those are the helpful Links!

So now I could test the unicode version v7.230.

Unfortunately, for an ordinary user like me, it's not possible to distinguish between normal and unicode version, because they have the same buggy output
Please, add something like "unicode version" to the output. That would be *very* beneficial for us:

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** NCONVERT v7.230 (c) 1991-2026 Pierre-E Gougelet (Jan  9 2026/17:18:59) UNICODE VERSION**
** This is freeware software (for non-commercial use)

Usage : nconvert.exe [options ...] file ...
     Type nconvert.exe -help, for more information

Now my results/examples:

I wrote a small script with utf+8 output, which says:

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NConverting File: C:\test\Joystick 🕹 Test\hello - yes, this is dog.jpg

nconvert output is as followning:

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Conversion of C:\test\Joystick ?? Test\hello - yes, this is dog.jpg into C:\test\Joystick ?? Test\hello - yes, this is dog.jpg OK

as well as

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NConverting File: C:\test\Joystick 🕹 Test\Björk Poster.jpg

nconvert output is as followning:

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Conversion of C:\test\Joystick ?? Test\Bj�rk Poster.jpg into C:\test\Joystick ?? Test\Bj�rk Poster.jpg OK

The conversion howsoever gladly works, but the output is "broken".

Thank you very much and happy nconverting!!