John Hewson created PDFBOX-1844:
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Summary: [PATCH] Parser for Type 1 Fonts
Key: PDFBOX-1844
URL: https://issues.apache.org/jira/browse/PDFBOX-1844
Project: PDFBox
Issue Type: Improvement
Components: FontBox
Affects Versions: 2.0.0
Reporter: John Hewson
This patch adds a parser for Type 1 fonts to FontBox and makes use of it in
PDFBox for rendering Type 1 glyphs. This should fix various issues with the JVM
crashing and rendering fonts incorrectly.
It was necessary to modify Type1CharStringParser to handle the `callothersubr`
command and correctly handle subroutines. Likewise, Type1CharString was
modified to support "flex".
This patch does not remove the AWT fallback for non-embedded and standard 14
fonts because am entirely new fallback system is needed and suitable fonts will
need to be shipped as part of PDFBox. This needs to be discussed on the mailing
list and/or in follow-on issue.
Note: To keep this patch small I have not replaced any of the existing ad-hoc
Type 1 parsing code in PDType1Font and preflight. Those classes retain their
original code which can be replaced in subsequent patches/refactoring. I can
open follow-on issues for these.
~~~
As well as the patch, the these files were added:
+ /pdfbox/src/main/java/org/apache/pdfbox/pdfviewer/font/Type1Glyph2D.java
+ /fontbox/src/main/java/org/apache/fontbox/encoding/CustomEncoding.java
+ /fontbox/src/main/java/org/apache/fontbox/type1/Token.java
+ /fontbox/src/main/java/org/apache/fontbox/type1/Type1CharStringReader.java
+ /fontbox/src/main/java/org/apache/fontbox/type1/Type1Font.java
+ /fontbox/src/main/java/org/apache/fontbox/type1/Type1Lexer.java
+ /fontbox/src/main/java/org/apache/fontbox/type1/Type1Mapping
+ /fontbox/src/main/java/org/apache/fontbox/type1/Type1Parser.java
And this file was removed:
- /pdfbox/src/main/java/org/apache/pdfbox/pdfviewer/font/CFFGlyph2D.java
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