Software "WebP" was not found! Please install it

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1

In Dolphin I want to convert an image via Context-Menu.
There is a context-menu for reimage:

image
image931×609 74.8 KB

If I use a resize entry, I got a message:

Software “WebP” was not found! Please install it.

If I look into my package manager , I see this:

image
image1035×858 68.2 KB

If I try to install webp-converter-git, it stuck for ages (or freeze?!?) on building electron33.
How can I get webP installed at manjaro elsewise?

2

Hi @rethus,

WebP is not a software package, that I know of. It’s an Image format, much like .jpg or .png. Well, that’s how I have it.

So I think it is actually referring to libwebp, which is in the extra repository:

$ pamac search webp
[...]
libwebp  1.6.0-2 [Installed]                                                                                                                                                                                               extra
WebP image codec library
[...]

So you can install it with:

pamac install libwebp

Hope this helps!

3

…and since you already have this installed maybe it is time to see the config/help/forum of Reimage to see how to add webp support. Maybe there is config file somewhere where you have to write the path to libwebp? But Reimage users and developers shoud know better.

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4

I don’t think that you need something from the AUR for this.

There was a (to me) similar issue one other member had four days ago:

Issue running cwebp

You may need to install libwebp-utils
not just the library libwebp that you already have.

But this is speculation - didn’t test this.

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5

Electron is a browser, a browser is an OS nowadays… it will take 2-3 or more hours to build from source, so try everything else first. Pretty sure you do not need this webp-converter-git anyway. Check the libwebp-utils first.

6

This may work:

1. Install the electron33-bin binary from the AUR:

pamac build electron33-bin

2. Now, build webp-converter-git as before:

pamac build webp-converter-git

All being well, it will no longer need to build electron33 from source (which is what takes up all the time and resources) because the binary is already installed.

7

I just installed kf6-servicemenus-reimage from the AUR and successfully converted a .png file to .webp, and I also resized a .webp image successfully, so both the “Compress and Resize” & “Convert and Rotate” options seem to work with webp as they should.

My guess is that you have installed the wrong reimage package. There are 2 available from the AUR: kf6-servicemenus-reimage and kde-service-menu-reimage-mod:

pamac search -a reimage  
kde-service-menu-reimage-mod  24.06.15-2                                  AUR
    Manipulate images e their metadata v. mod
coreimage-git  2.8.0.r3.c049d6c-1                                         AUR
    An image viewer from the CoreApps family.
coreimage  5.0.0-1                                                        AUR
    An image viewer from the C Suite
kf6-servicemenus-reimage  2.7.0-1 [Installed]                             AUR
    Manipulate images e their metadata

The comments at AUR (en) - kde-service-menu-reimage-mod show there is a recent issue:

UnavailableUser commented on 2025-12-07 17:40 (UTC)

Complains about webp not being installed when I try and compress/resize, is there a dependency missing?

Conversely, AUR (en) - kf6-servicemenus-reimage works as expected. Only dependency I see missing is “perl-image-exiftool”

So, if you have that one installed, remove it:

pamac remove kde-service-menu-reimage-mod

and then install the one that works:

pamac build kf6-servicemenus-reimage
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