guetzlidir

Will recursively process image files in source directory, optimizing them with Guetzli and writing to output directory. Processing is slow, memory and CPU intensive. EXIF data will be preserved

Optionally supports online processing using TinyJPG and Kraken.io

Guetzli

Guetzli is a JPEG encoder that aims for excellent compression density at high visual quality. Guetzli-generated images are typically 20-30% smaller than images of equivalent quality generated by libjpeg. Guetzli generates only sequential (nonprogressive) JPEGs due to faster decompression speeds they offer.

Supported file formats (file extensions):

JPEG (.jpg .jpeg)
PNG (.png)

Supports Windows, Linux, MacOS and probably other OSes.

Installation

pip install guetzlidir

You can download and use it as single Windows binary, see Releases

Usage

PiPy package

guetzlidir --minsize 300 --quality 80 /home/username/myphotos /home/username/photos_out

Windows executable

./guetzlidir.exe "c:\Users\username\Pictures\My Vacation" "c:\Users\username\Pictures\My Vacation Optimized Pictures"

TinyPNG online processing

Get API key, then:

guetzlidir --minsize 300 --tinypng api_key /home/username/myphotos /home/username/photos_out

Kraken.io online processing

Support is removed because no supported version is available in PyPi. See this.

Windows release 0.3.2 still has it's support: Download exe.

Known issues

Paths with spaces in windows are problematic. Looking for a solution.

varnav/guetzlidir