some fonts not rendered correctly(not showing up)

[gHensges]

Attach (recommended) or Link to PDF file here:

Configuration:

• Web browser and its version: Chrome 68.0.3440.106
• Operating system and its version: Windows 10 Pro, 1709 build 16299.611
• PDF.js version: Actual Demo Project
• Is a browser extension: No.

Steps to reproduce the problem:

1. Just load attached pdf.

What is the expected behavior? (add screenshot)

What went wrong? (add screenshot)

Link to a viewer (if hosted on a site other than mozilla.github.io/pdf.js or as Firefox/Chrome extension):
Rechnung_nach_Import_unleserlich.pdf

[THausherr]

Same on W7 with FF62.

[janpe2]

The embedded CFF fonts are invalid because the glyphs fail to follow CFF Type2 specification, page 11:

2. Hints: zero or more of each of the following hint operators, in exactly the following order: hstem, hstemhm, vstem, vstemhm, cntrmask, hintmask.

In the PDF file, the glyphs have operators in wrong order: first vstem and then hstem.

Here is a PDF in which I have fixed the order of stem hint operators in the character c, so PDF.js is able to render that character but not the other ones.
glyph_c_fixed.pdf

Issue #10014 seems to have exactly the same font problem.

[gHensges]

Nice that it is understood where the issue is coming from. But what about a fix. Other pdf-renderer are able to deal with this kind of fonts!