Open Source Font for displaying Chinese characters in PDF through RenderX in Unix System

We are generating the PDF through RenderX and need to know open source font files which would generate chinese characters / multilanguage . We used arialuni.ttf for POC in windows. Kindly let us know any commercially free Fonts available.

Solution

A good source of open source fonts in OTF format is Google: https://www.google.com/get/noto/#/

I downloaded https://www.google.com/get/noto/#/family/noto-sans-hans for simplified chinese. I added to my configuration like this:

<font-group xml:base="Noto/" label="Noto" embed="true" subset="true" initial-encoding="standard">
  <font-family name="NotoSansCJKsc">
    <font><font-data otf="NotoSansCJKsc-Regular.otf"/></font>
    <font weight="bold"><font-data otf="NotoSansCJKsc-Bold.otf"/></font>
  </font-family>
</font-group>

Using this FO fragment:

    <fo:flow flow-name="xsl-region-body"  font-family="NotoSansCJKsc">
        <fo:block>不知 可这里零件真多 他的手好快呀</fo:block>
        <fo:block font-weight="bold">不知 可这里零件真多 他的手好快呀</fo:block>
    </fo:flow>

I get this output:

enter image description here