Convert webp to jpg error: “no decode delegate for this image format” and “missing an image filename”

image manipulationimagemagickimages

I'm using ubuntu 12.04.
I've installed libwebp2 & libwebp-dev

So far, no example found on the net of converting webp to jpg.

Some webp files can easily converted by using imagemagick with command

convert file.webp file.jpg

but lots of webp files cannot be converted and give error:

convert: no decode delegate for this image format `file.webp' @ error/constitute.c/ReadImage/532.
convert: missing an image filename `file.jpg' @ error/convert.c/ConvertImageCommand/3011.

——–added

This is the file: http://www.filedropper.com/file_144

Best Answer

Google already provided the tool to decode webp images in the libwebp package, your uploaded file works on Arch.

dwebp file.webp -o abc.png

For the encoding tool, check the cwebp command.

In Ubuntu you can install the tools with:

sudo apt install webp

On RHEL/CentOS:

 yum install libwebp libwebp-tools

And you might consider using this online tool.

Related Solutions

ZSH – Strip Path, Filename, and Extension for Piping Commands

for x in /path/to/source/**/*.ext1; do convert $x ${x:r}.ext2 done

The r in ${x:r} is a history modifier. There's a short form of for that saves a few characters.

for x (/path/to/source/**/*.ext1) convert $x ${x:r}.ext2

How to convert, resize and center image with ImageMagick

Try using extent instead like this:

$ convert puma1.png -gravity center \
    -background white \
    -compress jpeg \
    -extent 1755x2475 puma1.pdf

Example

Your gravatar.

ss #1

And the resulting PDF file.

$ convert 453f11e81477e1e0334962ee262b3bcd.png -gravity center \
    -background white \
    -extent 500x500 \
    -compress jpeg 453f11e81477e1e0334962ee262b3bcd.pdf

ss #2

References

Use ImageMagick to place an image inside a larger canvas