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https://issues.apache.org/jira/browse/PDFBOX-5704?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17778041#comment-17778041
 ] 

Andreas Lehmkühler commented on PDFBOX-5704:
--------------------------------------------

There is some issue with the embedded font
{code}
 Warning  [PDCIDFontType2] Could not read embedded OTF for font SWKOVJ+TTA3Ao00
    java.io.IOException: 'head' table is mandatory
        at org.apache.fontbox.ttf.TTFParser.parseTables(TTFParser.java:176)
        at org.apache.fontbox.ttf.TTFParser.parse(TTFParser.java:144)
        at org.apache.fontbox.ttf.TTFParser.parse(TTFParser.java:66)
        at 
org.apache.pdfbox.pdmodel.font.PDCIDFontType2.<init>(PDCIDFontType2.java:123)
        at 
org.apache.pdfbox.pdmodel.font.PDCIDFontType2.<init>(PDCIDFontType2.java:72)
        at 
org.apache.pdfbox.pdmodel.font.PDFontFactory.createDescendantFont(PDFontFactory.java:138)
        at 
org.apache.pdfbox.pdmodel.font.PDType0Font.<init>(PDType0Font.java:97)
        at 
org.apache.pdfbox.pdmodel.font.PDFontFactory.createFont(PDFontFactory.java:96)
        at org.apache.pdfbox.pdmodel.PDResources.getFont(PDResources.java:170)
        at 
org.apache.pdfbox.contentstream.operator.text.SetFontAndSize.process(SetFontAndSize.java:72)
        at 
org.apache.pdfbox.contentstream.PDFStreamEngine.processOperator(PDFStreamEngine.java:892)
        at 
org.apache.pdfbox.contentstream.PDFStreamEngine.processStreamOperators(PDFStreamEngine.java:530)
        at 
org.apache.pdfbox.contentstream.PDFStreamEngine.processStream(PDFStreamEngine.java:505)
        at 
org.apache.pdfbox.contentstream.PDFStreamEngine.processPage(PDFStreamEngine.java:152)
        at org.apache.pdfbox.rendering.PageDrawer.drawPage(PageDrawer.java:282)
        at 
org.apache.pdfbox.rendering.PDFRenderer.renderImage(PDFRenderer.java:330)
        at 
org.apache.pdfbox.debugger.pagepane.PagePane$RenderWorker.doInBackground(PagePane.java:532)
        at 
org.apache.pdfbox.debugger.pagepane.PagePane$RenderWorker.doInBackground(PagePane.java:1)
        at javax.swing.SwingWorker$1.call(SwingWorker.java:295)
        at java.util.concurrent.FutureTask.run(FutureTask.java:266)
        at javax.swing.SwingWorker.run(SwingWorker.java:334)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:750)

 Warning  [PDCIDFontType2] Using fallback font LiberationSans for CID-keyed 
TrueType font SWKOVJ+TTA3Ao00
 Warning  [GlyphCache] No glyph for code 1 (CID 0001) in font SWKOVJ+TTA3Ao00
{code}

> char not rendered
> -----------------
>
>                 Key: PDFBOX-5704
>                 URL: https://issues.apache.org/jira/browse/PDFBOX-5704
>             Project: PDFBox
>          Issue Type: Bug
>          Components: Rendering
>    Affects Versions: 2.0.29, 3.0.0 PDFBox
>            Reporter: sunnyawake
>            Priority: Major
>         Attachments: 1.pdf
>
>
> the red char in the attached pdf can't be rendered.
> after debug pdfjs(which renders the char correctly), the font the char uses 
> is a cff font,not PDCIDFontType2



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