This is a full, open sourced implementation of png in Delphi.
It has native support for most of png features including the partial transparency, gamma and more.
This project was initially created by Gustavo Huffenbacher Daud (gustavo.daud at terra.com.br) and was hosted at http://pngdelphi.sourceforge.net
2017-11-02 Properly set alpha channel when assigning from 32bit TBitmap.
2017-10-25 Added PNGImage class to emulate old (beta) version API.