OTF fonts don't show up on printed page

Even when the generated PDF looks good on the computer, if you try and print any OTF fonts to paper they don’t show up in the print out. See below for details:

const fs = require('fs');
const pdf = require('pdfjs');
const helvetica = new pdf.Font(require('pdfjs/font/helvetica.json'));
const openSans = new pdf.Font(fs.readFileSync('node_modules/pdfjs/test/fixtures/font/opensans/bold.ttf'));

const doc = new pdf.Document({ font: helvetica, padding: 10 });
doc.pipe(fs.createWriteStream('output.pdf'));

// This prints "hello good bye"
doc.text().add('hello good bye');

// This prints "              "
doc.text().add('hello good bye', { font: openSans });

// This prints "hello good bye"
doc.text().add('hello').add('good bye');

// This prints "              "
doc.text().add('hello', { font: openSans }).add('good bye', { font: openSans });

// This prints "hello         "
doc.text().add('hello').add('good bye', { font: openSans });

// This prints "      good bye"
doc.text().add('hello', { font: openSans }).add('good bye');

doc.end();

[rkusa]

What a bug - found some applications that print empty pages as reported but also applications that print correctly 😱

So much for PDFs are WYSIWYG. Definitely something that needs to be fixed (also for my own use of the library). Thanks for reporting!

[rkusa]

I have set the PDF version to 1.6 for now. I’ll will publish a new NPM version later today. Thanks again for reporting this issue!