I use ImageMagick with Ghostscript.
I have utility method that I do this, and actually run it on the server so I
only have to install it there rather than on every single client machine:
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
$srcPict:=$1
$width:=$2
$height:=$3
$fileExtension:=$4
//--------------------- save the picture to a temporary file
---------------------
$srcFile:=Temporary folder+"tempPictFile."+$fileExtension
$dstFile:=Temporary folder+"tempPictFile_thumb.png"
WRITE PICTURE FILE($srcFile;$srcPict)
//--------------------- convert it using ImageMagick ---------------------
$convertPath:=System folder(Applications or Program Files)+"ImageMagick\\"
//user must install 32bit static version of IM and be sure to change the path
at installation time (default path includes the version number)
If (Test path name($convertpath)=Is a folder) //make sure user has it installed
$srcFileCmd:=$srcFile+"[0]" //add [0] because we only want page 1 of the
document
$cmd:="convert -thumbnail
"+String($width)+"x"+String($height)+Char(Space)+Char(Double
quote)+$srcFileCmd+Char(Double quote)+Char(Space)+Char(Double
quote)+$dstFile+Char(Double quote)+Char(Carriage return)+Char(Line feed)
SET ENVIRONMENT VARIABLE("_4D_OPTION_HIDE_CONSOLE";"true")
SET ENVIRONMENT VARIABLE("_4D_OPTION_CURRENT_DIRECTORY";$convertPath)
LAUNCH EXTERNAL PROCESS("cmd.exe";$cmd;$output;$errorTxt)
End if
$0:=$dstPict
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
I make sure that ImageMagick is installed into a folder in Program Files
called ‘ImageMagick’ so that I can hard code the path to the ‘convert' function
above.
HTH,
Randy
----------------------------------------------------------------------
Randy Jaynes
Senior Programmer and Customer Support
http://printpoint.com <http://printpoint.com/> • 845.687.3741 • PrintPoint, Inc
• 57 Ludlow Lane • Palisades, NY 10964
> On Sep 16, 2017, at 2:18 PM, stardata.info <http://stardata.info/> via
> 4D_Tech <4d_tech@lists.4d.com <mailto:4d_tech@lists.4d.com>> wrote:
>
> Hi,
>
> What use on windows?
>
> Thanks
>
> /Ferdinando/
>
>
> Il 16/09/2017 19:43, Christian Sakowski ha scritto:
>>> Using 4D i need to convert one PDF documento to jpeg document.
>> CONVERT PICTURE on Mac only, and first page only. Other pages with hmFree.
>> --
>>
>> Grüße/Regards,
>> [heubach-media] | Christian Sakowski
>> christian.sakow...@heubach-media.de
>> <mailto:christian.sakow...@heubach-media.de>
>> iChat/AIM: SakowskiF
>> Tel: +49/(0)40/52 10 59-23
>>
>>
>>
>>> Am 16.09.2017 um 12:14 schrieb stardata.info via 4D_Tech
>>> <4d_tech@lists.4d.com>:
>>>
>>> Hi All,
>>>
>>> Using 4D i need to convert one PDF documento to jpeg document.
>>> Someone know how i can do?
>>>
>>> Thanks
>>> Ferdinando
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