Converts PNG to JPG with png2jpeg.exe

ahk_png2jpg.ahk

#NoEnv
#NoTrayIcon
#SingleInstance force

SetWorkingDir %A_ScriptDir%
FileInstall, png2jpeg.exe, %A_Temp%\png2jpeg.exe, 0

; to compile this script, you will need to get png2jpeg.exe first
; https://sourceforge.net/projects/png2jpeg/

; https://autohotkey.com/board/topic/63952-dragdrop-file-onto-ahk-script-pathname-of-file-into-var/?p=403191
Loop %0%
{
	PngPath := ""
	GivenPath := %A_Index%
	
	Loop %GivenPath%, 1
		PngPath = %A_LoopFileLongPath%
	
	; get the ext from path
	PngPathExt = Substr(PngPath, -3)
	StringLower, PngPathExt, PngPathExt
	
	; simple check if its a png
	If (PngPath != "" && PngPathExt == ".png") {
		; prepare the jpg path
		JpgPath := RegExReplace(PngPath, "i)\.png$", ".jpg")
		
		; do your thang
		RunWait, "%A_Temp%\png2jpeg.exe" -q 95 -o "%JpgPath%" "%PngPath%", , Hide
	}
	
}