Apache PDFBox 2.0.4，Java的PDF处理类库

Apache PDFBox 2.0.3 发布了。Apache PDFBox库是一个开源的Java工具用于处理PDF文档。该版本修复了一些bug以及功能的提升。

更新内容：

Bug 修复:

• [PDFBOX-3300] - 缺少字形时的显示空格

• [PDFBOX-3375] - 对单例使用静态锁

• [PDFBOX-3396] - 压缩AcroForm与可见标志字段ETSI.CAdES.detached

• ......

提升:

• [PDFBOX-3262] - AcroForm flattening will cause hidden fields become visible

• [PDFBOX-3432] - Optimize CID to GlyphId mapping (TTF)

• [PDFBOX-3502] - add character spacing to content stream

• [PDFBOX-3529] - Read overprint attributes

• [PDFBOX-3537] - Create example of AcroForm creation with field that has two widgets

• [PDFBOX-3541] - Use /L entry to determine if a linearized file shall be treated as such for PDF/A validation

• [PDFBOX-3547] - [Patch] Improved signing of existing signature fields

• [PDFBOX-3552] - Allow external signing in two steps

• [PDFBOX-3567] - Process softmasks in ExtractImages

• [PDFBOX-3589] - Double negative float

• [PDFBOX-3599] - Support 16 bit JPG2000 images

• [PDFBOX-3618] - Helvetica in PDF/A - warn in PDType1Font.java about licensing issues

新特性:

• [PDFBOX-3563] - Create sample code for creating a PDF with patterns

• Test:

• [PDFBOX-3539] - Close Document after printing

下载地址：

• http://www.softpedia.com/get/Programming/Components-Libraries/PDFBox.shtml#download