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當我運行此代碼時，我在文檔的頂部獲得了一個邊距。iText xmlWorker top margin
而且我對如何擺脫它不知道。我正在運行最新版本的iText和XMLWorker。
Document document = new Document(PageSize.A5.rotate(), 0f, 0f, 0f, 0f);
PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream("E:/itext/test.pdf"));
HtmlPipelineContext htmlContext = new HtmlPipelineContext(null);
htmlContext.setTagFactory(Tags.getHtmlTagProcessorFactory());
CSSResolver cssResolver = XMLWorkerHelper.getInstance().getDefaultCssResolver(false);
cssResolver.addCss("p{color: #a00; font-size: 20pt; margin: 0; padding: 0;}", true);
Pipeline<?> pipeline = new CssResolverPipeline(cssResolver, new HtmlPipeline(htmlContext, new PdfWriterPipeline(document, writer)));
XMLWorker worker = new XMLWorker(pipeline, true);
XMLParser xmlParser = new XMLParser(worker);
document.open();
String htmlData = "<html> <p>Lorem ipsum</p> </html>";
xmlParser.parse(new StringReader(htmlData));
document.close();