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https://issues.apache.org/jira/browse/PDFBOX-2665?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14312697#comment-14312697
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John Hewson commented on PDFBOX-2665:
-------------------------------------
The real problem is the encode method, what should that do? getStringWidth
simply returns the widths of the glyphs which encode has found in the font. The
difficulty is that is a user expects a tab to be a single character, then its
is wrong for us to say, replace it with four spaces. What if they want three
spaces? What if they'd rather have an error when a missing glyph is used, even
if it is a whitespace? Different use cases are going to have different needs
and our API has to work at the level of the lowest common denominator. Not to
mention all the other kinds of whitespace, newlines, form feeds, non-breaking
spaces, zero-width joiners, etc.
It's too easy for end-users to generate PDFs with missing glyphs unless PDFBox
catches this error and throws an exception. Though perhaps we should throw a
checked exception?
> PDType1Font (HELVETICA) encode getting NullPointerException
> -----------------------------------------------------------
>
> Key: PDFBOX-2665
> URL: https://issues.apache.org/jira/browse/PDFBOX-2665
> Project: PDFBox
> Issue Type: Bug
> Components: PDModel
> Affects Versions: 2.0.0
> Environment: Win 7, JDK 7, JBoss AS 7
> Reporter: Daniel Brownell
> Assignee: John Hewson
> Fix For: 2.0.0
>
>
> Hi,
> I have been trying to revert to previous pdfbox-2.0.0 versions, which is why
> the error is from a previous build, but this is applicable to the latest
> (2.0.0-20150204.015951-1042) too.
> I am getting this error, which I was not getting a month ago.
> Regards...
> Error: java.lang.NullPointerException
> at
> org.apache.pdfbox.pdmodel.font.PDType1Font.encode(PDType1Font.java:309)
> [pdfbox-2.0.0-20150129.080600-1013.jar:2.0.0-SNAPSHOT]
> at org.apache.pdfbox.pdmodel.font.PDFont.encode(PDFont.java:267)
> [pdfbox-2.0.0-20150129.080600-1013.jar:2.0.0-SNAPSHOT]
> at
> org.apache.pdfbox.pdmodel.PDPageContentStream.showText(PDPageContentStream.java:316)
> [pdfbox-2.0.0-20150129.080600-1013.jar:2.0.0-SNAPSHOT]
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