(old)Puppy Linux Discussion Forum

https://www.css-ig.net/pingo/
pingo is an experimental, fast image optimizer for web that could reduce filesize by doing automatic, lossless or lossy image transformations. it processes files recursively using multithreading system

Download :
https://css-ig.net/bin/pingo-nix64.zip

Further reading :
Lossless Image Optimization/Compression with Trimage
https://trimage.org/
Pngquant – A Command-line Utility To Compress PNG Images On Linux
https://www.ostechnix.com/pngquant-a-co ... -on-linux/
Enlarge Images Without Losing Quality Online
https://imglarger.com/
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.
Download : https://github.com/google/guetzli/relea ... nux_x86-64
https://github.com/google/guetzli/
ImCompressor
ImCompressor is a lossless image compressor. It is inspired by Trimage and Image-Optimizer
https://github.com/Huluti/ImCompressor/

AppImage : https://github.com/meowtec/Imagine/rele ... 4.AppImage

Github : https://github.com/meowtec/Imagine

Further reading :
Imagine
Imagine — simple Electron (JavaScript, HTML, CSS) graphical interface (GUI) and console utilities designed to compress image formats like PNG, JPEG and WebP without any loss of quality.
Imagine to work with images uses console utility pngquant (conversion of 24/32-bit RGBA PNG to 8-bit PNG image with alpha transparency), mozjpeg (high-performance encoder JPEG-images from a project of Mozilla) and libwebp / cwebp (a set of libraries and a command-line utility for working with image format WebP).
https://linuxx.info/imagine/

Further reading :
Linux bash – save disk space – by batch recompressing jpg image picture files
https://dwaves.org/2019/12/21/linux-bas ... ure-files/