世俱杯 2025

PDFTextStream v2.7.0：
- PDFTextStream.NET now uses and ships with IKVM 0.46.0.4
- ASCII "control characters" (0-8) are no longer added to page document models
- Add support for /CXXX character names (observed in the wild, naming unicode
  code points in hex), which yields proper decoding of certain documents
- Added support for embedded CMAP files that use CR characters for linebreaks
- Added support for embedded font files that assume Windows-1250 text encoding
- Added workaround for certain PDF documents with malformed embedded CMAP files
  that would cause an infinite loop / hang in PDFTextStream's processing of said
  files.
- Fixed bug in PDF file merge facility that resulted in certain object
  stream-encoded objects from being included in the result of the merge.
- Fixed bug where certain signature form fields were not decoded properly, which
  was causing AcroSignatureField.getValue() to return null (instead of a Map of
  the field's properties).
- Fixed bug where compressed PDF object references were unnecessarily loaded
  repeatedly under .NET 4.5 on Windows
- Fixed bug where some PDF document merge operations would yield an incorrect
  reference to /Metadata objects, and thus prevent Acrobat Reader from printing
  them

PDFTextStream v2.7.0 更新内容如下：

• PDFTextStream.NET 现在使用IKVM 0.46.0.4。
• ASCII“控制字符”（0-8）不再被添加到页面文档模式中。
• 支持/CXXX字符名称。
• 支持换行符使用CR字符的嵌入CMAP文件。
• 支持采用Windows-1250 文本编码的嵌入字体文件。
• 为某些带有畸形嵌入CMAP文件（可能在处理过程中引发无限循环或卡死）的PDF文档添加变通方案。
• 修复PDF文件合并功能中导致某些流编码对象不被包含在最终合并中的错误。
• 修复由于AcroSignatureField.getValue() 返回null，而非字段属性的Map，导致某些签名表单字段未被正确解码的问题。
• 修复Windows .NET 4.5下压缩PDF对象引用被完全不必要地反复加载的问题。
• 修复了一些PDF文档合并操作会生成错误引用到 /Metadata 对象，由此组织了Acrobat Reader 打印它们的问题。