PDF viewer cannot display CJK characters in PDF generated by ptex/uptex and dvipfmx

[fuzy112]

Description

I tried to compile a Japanese document using ptex2pdf as the tool chain. It compiles successfully.
But the viewer does not display it correctly.

How to reproduce

I tried to compile such a file:

\documentclass{ujarticle}

\begin{document}
    こんにちは、世界。Hello, world.
\end{document}

This is my config:

{
    "latex-workshop.latex.toolchain": [
        {
            "command": "ptex2pdf",
            "args": [
                "-u",
                "-l",
                "-ot",
                "-synctex=1",
                "-ot",
                "-interaction=nonstopmode",
                "%DOC%"
            ]
        }
    ]
}

Expected behavior

Open the output PDF file with Adobe Reader. It displays like this:

Actual behavior

View it in LaTeXShop:

The Japanese characters are lost.

Log messages

LaTeX Workshop Output

[20:14:06] Initializing LaTeX Workshop.
[20:14:06] Creating LaTeX Workshop http and websocket server.
[20:14:06] LaTeX Workshop initialized.
[20:14:06] Found root file from active editor: c:\Users\Kirya\Source\Repos\testLaTeXWorkshop\document.tex
[20:14:06] Root file changed from: undefined. Find all dependencies.
[20:14:06] Instatiating new file watcher for c:\Users\Kirya\Source\Repos\testLaTeXWorkshop\document.tex
[20:14:06] Parsing c:\Users\Kirya\Source\Repos\testLaTeXWorkshop\document.tex
[20:14:06] Server created on 127.0.0.1:52481
[20:14:06] Default environments loaded
[20:14:06] LaTeX Workshop version: 3.5.4
[20:14:06] Default commands loaded
[20:14:06] Default unimathsymbols loaded
[20:14:12] BUILD command invoked.
[20:14:12] Found root file from active editor: c:\Users\Kirya\Source\Repos\testLaTeXWorkshop\document.tex
[20:14:12] Root file remains unchanged from: c:\Users\Kirya\Source\Repos\testLaTeXWorkshop\document.tex.
[20:14:12] Building root file: c:\Users\Kirya\Source\Repos\testLaTeXWorkshop\document.tex
[20:14:12] Build root file c:\Users\Kirya\Source\Repos\testLaTeXWorkshop\document.tex
[20:14:12] Toolchain step 1: ptex2pdf, -u,-l,-ot,-synctex=1,-ot,-interaction=nonstopmode,c:\Users\Kirya\Source\Repos\testLaTeXWorkshop\document
[20:14:15] LaTeX log parsed with 0 messages.
[20:14:15] Toolchain of length 1 finished.
[20:14:15] Successfully built c:\Users\Kirya\Source\Repos\testLaTeXWorkshop\document.tex
[20:14:15] No PDF viewer connected for c:\Users\Kirya\Source\Repos\testLaTeXWorkshop\document.pdf
[20:14:20] TAB command invoked.
[20:14:20] Found root file from active editor: c:\Users\Kirya\Source\Repos\testLaTeXWorkshop\document.tex
[20:14:20] Root file remains unchanged from: c:\Users\Kirya\Source\Repos\testLaTeXWorkshop\document.tex.
[20:14:20] No PDF viewer connected for c:\Users\Kirya\Source\Repos\testLaTeXWorkshop\document.pdf
[20:14:20] Serving PDF file at http://127.0.0.1:52481/viewer.html?file=/pdf:c%3A%5CUsers%5CKirya%5CSource%5CRepos%5CtestLaTeXWorkshop%5Cdocument.pdf
[20:14:20] Open PDF tab for c:\Users\Kirya\Source\Repos\testLaTeXWorkshop\document.pdf
[20:14:22] Preview PDF file: c:/Users/Kirya/Source/Repos/testLaTeXWorkshop/document.pdf
[20:14:26] Root file remains unchanged from: c:\Users\Kirya\Source\Repos\testLaTeXWorkshop\document.tex.

Developer Tools Console

Additional Information

I found this error in console.

[Embedded Page] PDF 4d8cd2fcd8884f0b478013b799f4707c [1.5 dvipdfmx (20170318) / TeX output 2017.10.03:2014] (PDF.js: 1.8.609)
2webview.ts:151 [Embedded Page] Warning: Error during font loading: Error: Unable to load binary CMap at: ../web/cmaps/Adobe-Japan1-UCS2.bcmap
2webview.ts:151 [Embedded Page] /pdf:c:\Users\Kirya\Source\Repos\testLaTeXWorkshop\document.pdf
webview.ts:151 [Embedded Page] PDF 2e0229a51252d7487d0d0184bc80e47e [1.5 dvipdfmx (20170318) / TeX output 2017.10.03:2030] (PDF.js: 1.8.609)
2webview.ts:151 [Embedded Page] Warning: Error during font loading: Error: Unable to load binary CMap at: ../web/cmaps/Adobe-Japan1-UCS2.bcmap

[maruta]

#284 will fix this issue.

[James-Yu]

Hopefully #284 will fix the problem. The update will be released to public channel shortly.