I have searched of FrontFamily:

[root@vm-limesurvey-pre application]# grep getFontFamily * -R
libraries/admin/pdf.php: $sFontFamily = $this->getFontFamily;
third_party/tcpdf/CHANGELOG.TXT: - Methods getFontFamily() and getFontStyle() were added.
third_party/tcpdf/tcpdf.php: public function getFontFamily() {
third_party/tcpdf/tcpdf.php: $dom[$key]['fontname'] = $this->getFontFamilyName($dom[$key]['style']['font-family']);
third_party/tcpdf/tcpdf.php: $dom[$key]['fontname'] = $this->getFontFamilyName($dom[$key]['attribute']['face']);
third_party/tcpdf/tcpdf.php: public function getFontFamilyName($fontfamily) {
third_party/tcpdf/tcpdf.php: $font_family = $this->getFontFamilyName($regs[1]);
third_party/tcpdf/tcpdf.php: $font_family = $this->getFontFamilyName($svgstyle['font-family']);

the tcpdf.php has:

/***************************************************************************
* PATH CONFIGURATION PARAMETERS
**************************************************************************/

/************************************************************
* TCPDF installation directory
* ----------------------------------------------------------
* This is the base installation directory for your TCPDF
* package (the folder that contains tcpdf.php).
*
* ADD TRAILING SLASH!
***********************************************************/

$tcpdf['base_directory'] = APPPATH.'third_party'.DIRECTORY_SEPARATOR.'tcpdf'.DIRECTORY_SEPARATOR;

##########################################################
##########################################################

And base_directory :

[root@vm-limesurvey-pre tcpdf]# ll
total 1204
-rwxrwxr-x 1 apache apache 116351 Apr 4 11:36 CHANGELOG.TXT
-rwxrwxr-x 1 apache apache 944 Apr 4 11:36 composer.json
drwxrwxr-x 2 apache apache 4096 Apr 4 11:36 config
drwxrwxr-x 7 apache apache 12288 Apr 4 11:36 fonts
drwxrwxr-x 3 apache apache 4096 Apr 4 11:36 include
-rwxrwxr-x 1 apache apache 43636 Apr 4 11:36 LICENSE.TXT
-rwxrwxr-x 1 apache apache 4767 Apr 4 11:36 README.md
-rwxrwxr-x 1 apache apache 7155 Apr 4 11:36 tcpdf_autoconfig.php
-rwxrwxr-x 1 apache apache 73406 Apr 4 11:36 tcpdf_barcodes_1d.php
-rwxrwxr-x 1 apache apache 14683 Apr 4 11:36 tcpdf_barcodes_2d.php
-rwxrwxr-x 1 apache apache 3327 Apr 4 11:36 tcpdf_import.php
-rwxrwxr-x 1 apache apache 27636 Apr 4 11:36 tcpdf_parser.php
-rwxrwxr-x 1 apache apache 897169 Apr 4 11:36 tcpdf.php ------------------------------------------> it has getFontFamilly()
drwxrwxr-x 2 apache apache 4096 Apr 4 11:36 tolos

So, I don't understand because I get this error.

Bonjour,

L'erreur vient du code du fichier, en effet, il manque des parenthèses à la fin de "$sFontFamily = $this->getFontFamily;".

Ce qui devrait donc être "$sFontFamily = $this->getFontFamily();".

Cordialement,

Hi,

This error is in the code itself "$sFontFamily = $this->getFontFamily;" instead of "$sFontFamily = $this->getFontFamily();".

Best regards.

Fix committed to master branch: http://bugs.limesurvey.org/plugin.php?page=Source/view&id=26223