added pngcrush

content/posts/2023/pngcrush.md

@@ -0,0 +1,29 @@
+---
+title: "🖼️ pngcrush — инструмент для оптимизации сжатия PNG-файлов"
+date: 2023-09-30T20:44:15+03:00
+draft: false
+tags: [tools, images]
+---
+
+`pngcrush` — Tool for optimizing the compression of PNG files.  
+`pngcrush` — Инструмент для оптимизации сжатия PNG-файлов.  
+URL: http://pmt.sourceforge.net/pngcrush.
+
+Пакет есть в репозиториях `Arch` и `Ubuntu`.
+
+**Пример работы утилиты:**
+
+```sh
+pngcrush -brute jfxr.png jfxr2.png
+```
+
+```text
+Warning: versions are different between png.h and png.c
+  png.h version: 1.6.37
+  png.c version: 1.6.40
+
+  Recompressing IDAT chunks in jfxr.png to jfxr2.png
+   Total length of data found in critical chunks            =    118940
+   Best pngcrush method        =   7 (ws 15 fm 0 zl 9 zs 0) =     84876
+CPU time decode 4.074774, encode 11.337994, other 0.100056, total 15.764133 sec
+```