Fatal error: Allowed memory size exhausted

When creating a simple views pdf, i always get a memory issue when trying to edit the view.
It seems that the following line is the culprit:
#1042 in views_pdf_template.php

so basicly on line 969 the following happens

foreach ($fonts as $font) {
        $name = self::getFontNameByFileName($font->uri);
        if(isset($name)) {
          $font_mapping[$font->name] = $name;
        }
    }

getFontNameByFileName is being called, and that's causing the error, so when i comment out the $name = self::getFontNameByFileName($font->uri) part, the memory issue disappears.

my memory limit is set to 128mb