Wrong encoding inside PDF

Which product are you using?

PDF.js Express Version

Detailed description of issue
When opening the following file: File Download
If you zoom in, there are texts which are wrongly encoded. They show unreadable signs. The original text is written in the German language. Instead, strange letters are shown.

Expected behaviour
We would expect that correct text will be shown as in all other Viewers.

Does your issue happen with every document, or just one?
Happens with this document, haven’t experienced it yet on any further files. Might happen also on other similar files, we do not have more to test for now.

Link to document
File Download

Code snippet

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Hey there!

Thanks for the bug report and sharing the document. I can reproduce and we’ll investigate.