Apache PDFBox 1.8.6 发布，此版本现已提供下载。此版本主要是 bug 修复和系统改进，bug 修复列表请看这里。 改进记录： Bug 修复 [PDFBOX-54] - please correct the SetField example [PDFBOX-62] - Incorrect (zero) character widths returned in some docs [PDFBOX-239] - PDFToImage prints every word at the start of the line [PDFBOX-934] - ImageToPDF.createPDFFromImage causes problems for certain TIFF inputs [PDFBOX-1474] - PDDocument.decrypt does not throws InvalidPasswordException [PDFBOX-1689] - Partial failure to render PDF [PDFBOX-1713] - [PATCH] Bullet character not rendered [PDFBOX-1756] - ClassCastException CosString cannot be cast to COSName [PDFBOX-1845] - PDDocument.load() give Error: Expected a long type at offset 1633 [PDFBOX-1895] - Type0 settings /Registry and /Ordering are not decrypted when writing document [PDFBOX-1922] - NonSequentialParser not reading version in header and trailer [PDFBOX-2047] - read operations alter PDLab object [PDFBOX-2050] - Add predictor to LZW filter [PDFBOX-2054] - Remove System.out.println() [PDFBOX-2056] - incomplete build tests [PDFBOX-2057] - Importing BufferedImage into PDPixelMap is broken in 1.8.5 [PDFBOX-2058] - The text of pdfs using Type1C can't be extracted correct [PDFBOX-2063] - Incomplete EOF detection in ASCIIHexFilter [PDFBOX-2064] - ArrayIndexOutOfBoundsException in CompositeImage.createMaskedImage [PDFBOX-2072] - Wrong calculation of space char width in PDFStreamEngine [PDFBOX-2073] - PDF files with unusual Japanese font can not be rewrite correctly [PDFBOX-2074] - 4-bytes CMap entry causes exception [PDFBOX-2079] - Extra new line characters extracted in 1.8.5 for embedded files leading to ZipFile exception in Java 1.6 [PDFBOX-2080] - Barcode getting color inverted in pdf to image conversion [PDFBOX-2082] - signing corrupts PDF when signature exactly fits allocated space [PDFBOX-2095] - Useless memory allocation in GlyfDescript [PDFBOX-2096] - ICC profile ignored if number of components is 1 [PDFBOX-2100] - Gouraud shading doesn't work with function [PDFBOX-2101] - Surprising memory consumption when extracting images [PDFBOX-2102] - Characters swallowed on COSString.getString() [PDFBOX-2109] - CFFParser uses String constructor without encoding [PDFBOX-2110] - Font not found: CourierNew [PDFBOX-2111] - Cast error in Gouraud shadings [PDFBOX-2114] - ObjStm is being processed to late [PDFBOX-2115] - Use unfiltered stream in gouraud shadings [PDFBOX-2120] - Regression: Type 1 font corrupted [PDFBOX-2122] - FontBox's TTFDataStream doesn't set timezone in readInternationalDate 改进： [PDFBOX-712] - SecurityHandlersManager May stop the application Server when running PDFParser in a Servlet. [PDFBOX-1596] - OverlayPDF logic should be moved into a library class [PDFBOX-1739] - Load document error for two RegisSTAR documents [PDFBOX-2034] - TestFilters is non-deterministic [PDFBOX-2052] - PDFCloneUtility does not handle COSStreamArray [PDFBOX-2066] - RubberStampWithImage should support more image types [PDFBOX-2084] - Make TestImageIOUtils optional in 1.8 for Fedora packaging [PDFBOX-2105] - Support for multipage TIFFs in CCITTFactory, makes PDFBox capable of doing tiff2pdf [PDFBOX-2129] - Add PDFBox version to the title [PDFBOX-1600] - COSDocument and PDDocument declare throws IOException when they don't [PDFBOX-1584] - Add unit test for RandomAccessFileOutputStream PDFBox是Java实现的PDF文档协作类库，提供PDF文档的创建、处理以及文档内容提取功能，也包含了一些命令行实用工具。 主要特性包括：
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