AutoHotkey Community

Hello there -- I am searching for a script that will help me effectively and cleanly resize a PNG image. I couldn't find anything in this group already posted that will do this except for some external apps. Can someone please help me with this problem if this can be solved the 'AHK-Way'? Thank you in advance. Have good upcoming weekend.

You need to call an external program that resizes it.

Say, IfranView as its free or use an imagemagick program.


Make the above code a Runwait command

Why would anyone expect AHK do this?

You're best bet is to find a OS call that could do it. But I doubt Windows supports png.

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Stuart Halliday

Hello! The issue with those two utilities is one cannot be used for commercial purposes, and the other does not support beyond 16-bit images. I am looking for something more open and free basically.... but maybe someone can shake some sense into me on how to do this right. I ran across something called libpng... but I don't know if that would help me to perform PNG resizes.... and would have no clue how to implement. Anyone how there know how to achieve the goal from my original post? I just want to work with PNG's but open to any other solutions without too much heavyweight backend if possible (and GNU license for third-party tools).... a DLL + some script would be cool, but open to suggestions or even a tool if it works.

With GDI+ you can resize png files and much more.
It is part of the OS,for me it is the natural choice.

Oh oh oh, please someone show me the GDI adaptation of this!

Run a search , there are some scripts calling GDI+ functions here.

I did a pretty thoughtful search, .... I think I see some tidbits using the GDI technique .... but maybe you can provide a link or two to a starting point to where I might delve into research on this topic. Thank you so much for re-aligning my mind to this answer.

Best wishes