MaxSigns = 20  ; заменить на нужное
watchfolder = %A_Desktop%\watchfolder ; заменить на истинный путь к папке с файлами титров
prtlPath = %A_Desktop%\1.prtl  ; заменить на истинный путь к исходному файлу 1.ptrl
FontName = Arial   ; заменить на нужный
FontSize = 10   ; заменить на нужный

FileEncoding, UTF-16
FileRead, prtl, %prtlPath%
Return
F11::
i := n := PrevEndPos := 1

FileRemoveDir, %watchfolder%, 1
FileCreateDir, %watchfolder%
ClipBoard =
SendInput, ^{vk43}   ; Ctrl + C
ClipWait, 2
if ErrorLevel
{
   MsgBox, Буфер обмена пуст!
   Return
}
Clipboard := RegExReplace(Clipboard, "\R+", "`n")
Length := StrLen(Clipboard)
Loop, parse, ClipBoard
{
   if (A_Index = Length)
      EndPos := A_Index + 1
   if (A_LoopField = " " || A_LoopField = "`n")
      EndPos := A_Index
   if (A_Index = Length || A_LoopField = "`n" || i = MaxSigns + 1)
   {
      if !EndPos
         EndPos := A_Index + 1, Modifier := 1
      String%n% := SubStr(ClipBoard, PrevEndPos, EndPos - PrevEndPos)
      if Modifier
         PrevEndPos := EndPos, Modifier := ""
      Else
         PrevEndPos := EndPos + 1
      i := A_Index - EndPos, n++, EndPos := ""
   }
   i++
}

Loop % n - 1
{
;   MsgBox, % "String" A_Index " = |" String%A_Index% "|"
   String := String%A_Index%
   StrLength := StrLen(String) + 1
   nSise := GetTextExtentPoint(String, FontName, FontSize)
   StrWidth := nSise & 0xFFFFFFFF
   Pos := Round((720 - StrWidth)/2)

   prtl%A_Index% := RegExReplace(prtl, "<CharacterAttributes RunCount="".*?"""
                                     , "<CharacterAttributes RunCount=""" StrLength """")

   prtl%A_Index% := RegExReplace(prtl%A_Index%, "<TRString>.*?</TRString>"
                                              , "<TRString>" String "</TRString>")

   prtl%A_Index% := RegExReplace(prtl%A_Index%, "<Position><x>.*?</x>"
                                              , "<Position><x>" Pos "</x>")
   FileName := "title" . SubStr("000", 1, -(StrLen(A_Index))) . A_Index . ".prtl"
   FileAppend, % prtl%A_Index%, %watchfolder%\%FileName%
}

MsgBox, Сделано!
Return

GetTextExtentPoint(sString, sFaceName, nHeight = 9
   , bBold = False, bItalic = False, bUnderline = False, bStrikeOut = False, nCharSet = 0)
{
   hDC := DllCall("GetDC", "Uint", 0)
   nHeight := -DllCall("MulDiv", "int", nHeight
                               , "int", DllCall("GetDeviceCaps", "Uint", hDC, "int", 90)
                               , "int", 72)

   hFont := DllCall("CreateFont", "int", nHeight, "int", 0, "int", 0, "int", 0
                                , "int", 400 + 300 * bBold, "Uint", bItalic
                                , "Uint", bUnderline, "Uint", bStrikeOut, "Uint", nCharSet
                                , "Uint", 0, "Uint", 0, "Uint", 0, "Uint", 0, "str", sFaceName)
   hFold := DllCall("SelectObject", "Uint", hDC, "Uint", hFont)

   DllCall("GetTextExtentPoint32", "Uint", hDC, "str", sString, "int", StrLen(sString), "int64P", nSize)

   DllCall("SelectObject", "Uint", hDC, "Uint", hFold)
   DllCall("DeleteObject", "Uint", hFont)
   DllCall("ReleaseDC", "Uint", 0, "Uint", hDC)
/*
   nWidth  := nSize & 0xFFFFFFFF
   nHeight := nSize >> 32 & 0xFFFFFFFF
*/
   Return nSize
}