Go to /dokuwiki/lib/plugins/dw2pdf/vendor/mpdf/mpdf/src/Writer/MetadataWriter.php
and look for the function writeInfo(). In the line where the author is specified, remove the !
in the condition:
if ( !empty($this->mpdf->author) ) {
like so:
if ( empty($this->mpdf->author) ) {
then insert your desired author name in the statement:
$this->writer->write('/Author ' . $this->writer->utf16BigEndianTextString($this->mpdf->author));
like so:
$this->writer->write('/Author ' . $this->writer->utf16BigEndianTextString('Author Name'));
Save the file, refresh your cache, export your pdf and check it out!
Cheers!