we have some PDFs that are written in Japanese letters.
On our production system (Linux Ubuntu 14.04) the conversion PDF → XOD is not done properly. Some pages contain Japanese letters but these letters are not displayed when viewing the document in the PDFTron WebViewer. When viewing the original PDF in the WebViewer all letters are displayed, so I think it has something to do with the (conversion to) XOD.
On my development machine (Linux Ubuntu 18.04) this conversion is done without any errors - all pages contain all letters. So I think it’s related to the OS and its installed fonts / character sets.
Can you provide information about font / character set packages that I have to install in order to solve this problems?