Datatables PDF export right to left - datatable

Question

I've managed to make a new font and add it to the datatable, but when I generated the PDF the text was aligned from left to right which is the opposite of what I wants, is there any configurations that I could use to make is right to left.
Also I'm using server side processing, and multi-column filtering, and the PDF button only prints the current page, what is the configuration to make it print the whole filter result.
Thanks in advance

Answer 1

You need to use specific pdfmake configuration options to manipulate the exported PDF:
https://datatables.net/reference/button/pdfHtml5
This will make the text to align right, it won't make the text run from right-to-left, however:
buttons: [
{
extend: 'pdf',
customize: function ( doc ) {
doc.content[0].alignment = 'right';
}
}
]

Answer 2

hi here is my code for persian ltr to rtl this is a function that's can use in datatable to export as pdf :
function buttonForDatatable(columns, margins, prtrait = "portrait",title='',message='') {
return [
{
extend: 'copy',
text:"کپی",
exportOptions: {
columns: columns.reverse(),
},
}, {
extend: 'csv',
text:"سی اس وی",
exportOptions: {
columns: columns.reverse(),
},
}, {
extend: 'print',
text:"پرینت",
exportOptions: {
columns: columns.reverse(),
},
}, {
extend: 'excel',
text:"اکسل",
exportOptions: {
columns: columns,
},
} ,{
extend: 'pdfHtml5',
orientation: prtrait,
footer: true,
alignment: "center",
title: title,
messageTop:message,
text: "PDF",
exportOptions: {
alignment: "center",
orthogonal: "PDF",
columns: columns,
modifier: {order: 'index', page: 'current'}
},
customize: function (doc) {
doc.styles.message.alignment = "right";
doc.styles.tableBodyEven.alignment = "center";
doc.styles.tableBodyOdd.alignment = "center";
doc.styles.tableFooter.alignment = "center";
doc.styles.tableHeader.alignment = "center";
doc.content[0]['text'] = doc.content[0]['text'].split(' ').reverse().join(' ');
doc.content[1].margin = margins;
doc.content[2].margin = margins;
for (var i = 0; i < doc.content[2].table.body.length; i++) {
// console.log(doc.content[1].table.body[i].length);
for (var j = 0; j < doc.content[2].table.body[i].length; j++) {
doc.content[2].table.body[i][j]['text'] = doc.content[2].table.body[i][j]['text'].split(' ').reverse().join(' ');
}
}
}
}
];
}
and after that you are can use same as here :
table = $('#mydatatable').DataTable({
language: language,
"lengthMenu": [[10, 25, 50, -1], [10, 25, 50, "all"]],
dom: 'Blfrtip',
buttons: buttonForDatatable([2, 3, 4], [0, 0, 0, 0]),
processing: true,
serverSide: true,
.....