++++++++ INFO N° 1: +++++++++++++++++++++++++++++++++++

Bonjour,
I confirm, with "_LoadFontStandard("_Helv", $PDF_FONT_STD_HELVETICA)" my script works very fine with french characters (é,è,à,ë etc...)
Thank you Taietel for your work.
Salutations 

Efo74, if you want to use _Paragraph function with standard fonts, you have to add those fonts also (with their properties), just like __FontTimes, for example.

+++++++++ INFO N°2 ++++++++++++++++++++++++++++++++++++

We have fixed our issue with French characters by slightly modifying the _LoadFontTT() function:
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 Func _LoadFontTT($sAlias, $BaseFont, $sOptions = $PDF_FONT_NORMAL)
Local $sTemp = ""
$_Font = $_Font + 1
$BaseFont = StringReplace($BaseFont, " ", "")
Switch $BaseFont
  Case "TimesNewRoman"
   __FontTimes($sOptions)
  Case "CourierNew"
   __FontCourier($sOptions)
  Case "Symbol"
   __FontSymbol($sOptions)
  Case "Calibri"
   __FontCalibri($sOptions)
  Case "Garamond"
   __FontGaramond($sOptions)
 Case "3of9Barcode"
   __Font3OF9($sOptions)
  Case Else
   __FontArial($sOptions)
EndSwitch
Local $i = __InitObj()
__ToBuffer("<< /Type/Font/Subtype/TrueType/Name/" & $sAlias & "/BaseFont/" & $BaseFont & $sOptions & "/FirstChar " & $FirstChar & "/LastChar " & $LastChar & "/FontDescriptor " & $i + 1 & " 0 R/Encoding/WinAnsiEncoding/Widths [")
For $j = $FirstChar To $FirstChar + $LastChar
  If $Widths[$j - $FirstChar] <> 0 Then
   $sTemp &= __ToStr($Widths[$j - $FirstChar]) & " "
   If Mod($j - $FirstChar + 1, 16) = 0 Or $j = $FirstChar + $LastChar Then
    __ToBuffer($sTemp)
    $sTemp = ""
   EndIf
  EndIf
Next
__ToBuffer("] >>")
__EndObj()
$_sFONT = $_sFONT & "/" & $sAlias & " " & $i & " 0 R " & @CRLF
$_sFONTNAME = $_sFONTNAME & "<" & $sAlias & ">" & StringRight("0000" & $_Font, 4) & ";"
;$i =
__InitObj()
__ToBuffer("<< /Type/FontDescriptor/FontName/" & $BaseFont & $Param & ">>")
__EndObj()
EndFunc   ;==>_LoadFontTT
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