Compress webp

[standus]

I have this command:
nconvert.exe -overwrite -no_auto_ext -resize 100% 100% myimage.webp
for compress image, but I got alway s error:
Error: Don't know how to read this picture (myimage.webp)","","** NCONVERT v7.121 (c) 1991-2022 Pierre-E Gougelet (Sep 6 2022\/10:41:00) **"," Version for Windows Xp\/Vista\/7 x64 (All rights reserved)","** This is freeware software (for non-commercial use)","","my_error_exit...<Not a JPEG file: starts with 0x52 0x49>

JPG and PNG files work perfect. What is wrong that webp file not work?

[cday]

I have this command:

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nconvert.exe -overwrite -no_auto_ext -resize 100% 100% myimage.webp

to compress image...

You seem to be missing this compression term:

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-q value          : JPEG/FPX/WIC/PDF/JPEG2K/WebP quality (default : 85)

...but I get this error:

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Error: Don't know how to read this picture (myimage.webp)","","** NCONVERT v7.121 (c) 1991-2022 Pierre-E Gougelet (Sep  6 2022\/10:41:00) **","        Version for Windows Xp\/Vista\/7 x64  (All rights reserved)","** This is freeware software (for non-commercial use)","","my_error_exit...<Not a JPEG file: starts with 0x52 0x49>

JPG and PNG files work perfect. What is wrong that webp file not work?

Could you upload an example webp file that can't be opened for Pierre to test?

[standus]

Here is.

[XnTriq]

You have to copy libwebp.dll into the Plugins subdirectory of your NConvert installation.

[standus]

You have to copy libwebp.dll into the Plugins subdirectory of your NConvert installation.

Not solved.

[xnview]

which libwebp do you have copied?

[standus]

from Xnview Zip file and his Plugins folder.

[xnview]

from Xnview Zip file and his Plugins folder.

XnView MP 64bits?

[standus]

No.
XnView-win-full.zip

[xnview]

No.
XnView-win-full.zip

if you have NConvert x64, you need x64 plugins so from XnView MP x64

[standus]

OK, thank you. I see that its OK now.