Question

How can you set unicode to ISO-8859-1 so chars like æ, ø, å will work? Now all special chars are ignored in text strings

new TCPDF('P', 'mm', 'A4', true, 'ISO-8859-1', false, true);

Answer 1

If you have your text in utf-8, use iconv first:

$string_iso = iconv('utf-8','iso-8859-1',$string_utf8);

If it’s not the case, ensure that you are using proper font. I have just checked times and it have all special characters from iso-8859-1.

Edit:

You will also have to set $unicode = FALSE in TCPDF constructor:

new TCPDF('P', 'mm', 'A4', FALSE, 'ISO-8859-1', false, true);