NAME

       img2webp - create animated WebP file from a sequence of input images.

SYNOPSIS

       img2webp [file_options] [[frame_options] frame_file]...
       img2webp argument_file_name

DESCRIPTION

       This manual page documents the img2webp command.

       img2webp compresses a sequence of images using the animated WebP format.  Input images can
       either be PNG, JPEG, TIFF or WebP.  If a single file name (not starting with the character
       '-')  is  supplied as the argument, the command line arguments are actually tokenized from
       this file.  This allows for easy scripting or using a large number of arguments.

FILE-LEVEL OPTIONS

       The file-level options are applied at the beginning of the compression process, before the
       input frames are read.

       -o string
              Specify the name of the output WebP file.

       -min_size
              Encode images to achieve smallest size. This disables key frame insertion and picks
              the parameters resulting in the smallest output for each frame.  It  uses  lossless
              compression by default, but can be combined with -q, -m, -lossy or -mixed options.

       -kmin int

       -kmax int
              Specify   the   minimum   and  maximum  distance  between  consecutive  key  frames
              (independently decodable frames) in the output animation. The tool will insert some
              key frames into the output animation as needed so that this criteria is satisfied.
              -mixed  Mixed compression mode: optimize compression of the image by picking either
              lossy or lossless compression for each  frame  heuristically.  This  global  option
              disables the local option -lossy and -lossless .

       -loop int
              Specifies  the  number  of  times  the animation should loop. Using '0' means 'loop
              indefinitely'.

       -v     Be more verbose.

       -h, -help
              A short usage summary.

       -version
              Print the version numbers of the relevant libraries used.

PER-FRAME OPTIONS

       The per-frame options are applied for the images following as  arguments  in  the  command
       line. They can be modified any number of times preceding each particular input image.

       -d int Specify the image duration in milliseconds.

       -lossless, -lossy
              Compress  the  next  image(s) using lossless or lossy compression mode. The default
              mode is lossless.

       -q float
              Specify the compression factor between 0 and 100. The default is 75.

       -m int Specify the compression method to  use.  This  parameter  controls  the  trade  off
              between  encoding  speed and the compressed file size and quality.  Possible values
              range from 0 to 6. Default value is 4.

EXAMPLE

       img2webp -loop 2 in0.png -lossy in1.jpg -d 80 in2.tiff -o out.webp

BUGS

       Please report all bugs to the issue tracker: https://bugs.chromium.org/p/webp
       Patches       welcome!       See       this       page       to        get        started:
       https://www.webmproject.org/code/contribute/submitting-patches/

AUTHORS

       img2webp is a part of libwebp and was written by the WebP team.
       The latest source tree is available at https://chromium.googlesource.com/webm/libwebp

       This  manual  page  was  written by Pascal Massimino <pascal.massimino@gmail.com>, for the
       Debian project (and may be used by others).

SEE ALSO

       webpmux(1), gif2webp(1)
       Please refer to https://developers.google.com/speed/webp/ for additional information.

                                         January 5, 2022                              IMG2WEBP(1)