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compresspng.org guides & articles

17 in-depth guides on Compress PNG and related topics.

Choosing a format

Choosing a format PNG vs SVG for Logos and Icons Decide between raster PNG and vector SVG for logos, icons, and illustrations with a clear comparison of sharpness, file size, and compatibility. 4 min read Choosing a format PNG, JPG or WebP: Which Should You Use? Stop guessing image formats: what your picture actually is decides the answer. 7 min read Choosing a format When You Should Not Compress a PNG Palette reduction is permanent. Keep the original or lose it forever. 4 min read

How PNG compression works

How PNG compression works Interlaced PNG (Adam7): Should You Use It? Interlaced PNG (Adam7) allows a rough preview to display while downloading, but usually increases file size. This article explains how it works and when to skip it. 4 min read How PNG compression works How PNG Compression Works Inside every PNG file, a two stage engine filters your pixels then compresses the differences. 5 min read How PNG compression works Lossless vs Lossy PNG Compression Choose the right PNG mode and save 70 percent or more without breaking your image. 6 min read How PNG compression works PNG File Size vs Image Dimensions Understand the quadratic math of PNG dimensions and know exactly when to resize before you compress. 6 min read

Other apps and platforms

Other apps and platforms How to Compress a PNG on iPhone or Android Compress PNG on phone using iPhone Shortcuts or browser based tools. Reduce PNG size on Android and shrink screenshots without a computer. 4 min read Other apps and platforms Compress PNGs on Linux From the Command Line Compress PNGs on Linux with pngquant for lossy reduction and OptiPNG or oxipng for lossless optimization, including batch terminal commands. 3 min read Other apps and platforms How to Save a Smaller PNG in Illustrator This guide covers Illustrator's three PNG export routes and the settings that control file size, including resolution, PNG-8 colors, and anti-aliasing. 4 min read Other apps and platforms How to Export Smaller PNGs From Figma Understand why Figma PNGs are large and how to reduce their size using export settings and post-export compression. 3 min read

Compressing on Mac

Compressing on Mac Batch Compressing PNGs on a Mac With Automator Build a macOS Quick Action that batch resizes every PNG in a folder, keeping originals intact. 8 min read Compressing on Mac How to Compress a PNG on a Mac Preview has no quality slider for PNG. Here is what macOS can and cannot do. 6 min read

Compressing on Windows

Compressing on Windows How to Compress a PNG in Paint Paint has no compression slider, but two honest levers can shrink any PNG. 5 min read Compressing on Windows How to Compress a PNG on Windows Open Photos, resize, save as JPEG. Windows has no PNG quality slider. 5 min read

Photoshop and GIMP

Photoshop and GIMP How to Compress a PNG in GIMP The compression slider is lossless. The real savings are in indexed mode. 7 min read Photoshop and GIMP How to Compress a PNG in Photoshop Three Photoshop export routes compared, with the one that shrinks PNGs most. 7 min read