Dear Adam,

really thanks for your advice. It solved my problem.
I suggest to add this requirement to the list of the quexf system requirements.


Luca Scatigno

2012/8/27 Adam Zammit <>
Dear Luca,

Please make sure your PHP installation has GD available.

See here:

Adam Zammit

On 25 August 2012 01:44, Luca Scatigno <> wrote:
> Hi,
> I've just installed quexf and I'm trying to get it run with the example form
> test_blank.pdf given in the doc dir. The problem is that I select the
> correct file with the right description in "Import a new form from a PDF
> file" section, but when I click on the Submit button the result page is
> blank.
> So I've checked error.log and got the following error:
> PHP Fatal error:  Call to undefined function imagecreatefromstring() in
> /var/www/quexf/functions/functions.import.php on line 170, referer:
> http://localhost/quexf/admin/new.php
> I've put some debug row into /var/www/quexf/functions/functions.import.php
> to check if there are some problems with the imported file, but everything
> seems ok.
> If I put a print statement after the line:
> $image = imagecreatefromstring($data);
> nothing is shown.
> I don't understand where could be the problem, is that due to an uncorrect
> installation?
> Could someone help me please in making it work.
> Thanks in advance.
> Luca
> ------------------------------------------------------------------------------
> Live Security Virtual Conference
> Exclusive live event will cover all the ways today's security and
> threat landscape has changed and how IT managers can respond. Discussions
> will include endpoint security, mobile security and the latest in malware
> threats.
> _______________________________________________
> Quexf-discuss mailing list

Adam Zammit
Research and Development Officer
Australian Consortium for Social and Political Research Inc.
+61 3 9013 9653