如何旋转页面而不是iText中的文本? [英] how to rotate pages but not the text in iText?

问题描述

我正在尝试创建一个PDF文档，其中某些页面为纵向页面，另一些页面为横向页面，但是看到了此示例(

I'm trying to create a PDF document with some pages in portrait and others in landscape, but seeing this example (iText7 - Page orientation and rotation) I found that the page rotates to landscape but the text also does it (PDF generated from iText7 samples), then, I need that the pages to rotate but the text continues from left to right, how in the next image.

注意:我尝试使用document.getPdfDocument().addNewPage(new PageSize(PageSize.A4.rotate()));，但是它只能用于一页，而不能用于接下来的x页.

Note: I tried to use document.getPdfDocument().addNewPage(new PageSize(PageSize.A4.rotate()));but it works for one page, not for the next x pages.

推荐答案

您可以通过设置页面大小来实现

You can do it with setting page size

对于itextpdf 5.5.x

Document doc = new Document();
PdfWriter.getInstance(doc, new FileOutputStream("D://qwqw12.pdf"));
doc.open();
doc.add(new Paragraph("Hi"));
doc.setPageSize(PageSize.A4.rotate());
doc.newPage();
doc.add(new Paragraph("Hi2"));
doc.newPage();
doc.add(new Paragraph("Hi3"));
doc.close();

这将创建一个带有 Hi 的A4页面，然后一个带有 Hi2 的 Landscape-取向页面，最后一个页面也将是以景观为导向.除非您没有通过setPageSize()设置新的页面样式，否则所有新页面都将以横向显示.

this will create an A4-page with Hi, then an landscape-oriented page with Hi2, and last page will also be landscape-oriented. All new pages will be landscape-oriented until you don't set new page style via setPageSize().

对于itextpdf 7.x

PdfDocument pdfDoc = new PdfDocument(new PdfWriter("D://qwqw12.pdf"));
Document doc = new Document(pdfDoc, PageSize.A4);
doc.add(new Paragraph("Hi"));
doc.getPdfDocument().setDefaultPageSize(PageSize.A4.rotate());
doc.add(new AreaBreak());
doc.add(new Paragraph("Hi2"));
doc.add(new AreaBreak());
doc.add(new Paragraph("Hi3"));
doc.close();

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