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https://issues.apache.org/jira/browse/PDFBOX-4116?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16369555#comment-16369555
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Tilman Hausherr commented on PDFBOX-4116:
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"embedded" is the correct word. The embedded subsetted fonts shouldn't be
reused for the two reasons I mentioned, i.e. (1) sometimes missing unicode, and
(2) missing glyphs. (1) is what you had, (2) is because it is subsetted, i.e.
such a subset won't have all the glyphs, so you may have "a", "b" and "d" but
not "c".
{color:#333333}"This may or may not work"{color} is because the "raw" command
parameter is just the end of a chain of calculations. So sometimes the code
there is identical to the unicode value, but often it is not.
In other words: you'll often have a very bad day reusing subsetted fonts.
Better get the original font.
I am surprised that you wrote "{color:#333333}I am working on extracting
information from PDF publications" but what you really did was adding
text.{color}
> could not add text without unicode in the font
> ----------------------------------------------
>
> Key: PDFBOX-4116
> URL: https://issues.apache.org/jira/browse/PDFBOX-4116
> Project: PDFBox
> Issue Type: Wish
> Components: PDModel
> Affects Versions: 2.0.8
> Environment: Windows
> Reporter: xing Wang
> Priority: Minor
> Attachments: image-2018-02-19-09-23-00-110.png
>
>
> !image-2018-02-19-09-23-00-110.png!
> As shown in the debugger, that the PDFType1Font map the code of 33 to
> "minus", but there is no unicode value associated with it.
> If we use the code `contentStream.showText("\u0021");` to add content, it
> will cause an error of following.
> Exception in thread "main" java.lang.IllegalArgumentException: U+0021
> ('exclam') is not available in this font AMZNGR+CMSY10 (generic:
> FREBPT+CMSY10) encoding: built-in (Type 1) with differences
> at org.apache.pdfbox.pdmodel.font.PDType1Font.encode(PDType1Font.java:439)
> at org.apache.pdfbox.pdmodel.font.PDFont.encode(PDFont.java:323)
> at org.apache.pdfbox.debugger.CreatePDF.main(CreatePDF.java:63)
> The best way I could do is used the "appendRawCommands", but I find it's
> marked as deprecated. I am wondering why or is there any replacement for this
> function?
>
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