如何在 iText 7 中创建页面大小不等的文档？
在 iText7 中可以吗？
在 iText5 中，我使用了 document.setPageSize() 和 document.newPage()。
【问题讨论】：
Document 级别更改页面大小存在几种方法。采取的最佳方法取决于您的用例。如果您在添加某些内容后需要新页面，您可以设置页面大小并添加分页符以强制新页面，如果您需要每 X 页横向页面，页面事件是您的最佳选择等。
如果您通过高级 API（Document.add() 及其同类）添加内容，并且所需的页面大小直接与特定内容相关联，则通过 PdfDocument.setDefaultPageSize 修改默认页面大小可能是最干净和最简单的方法，像这样：
public void createPdf(String dest) throws IOException, FileNotFoundException{
PdfWriter writer = new PdfWriter(dest);
PdfDocument pdfDoc = new PdfDocument(writer);
Document doc = new Document(pdfDoc);
pdfDoc.setDefaultPageSize(PageSize.A5);//All pages will be added using this page size
String paragraphOneText = "I have seen the face of sorrow\n" +
"She looks away in the distance\n" +
"Across all these bridges\n" +
"From whence I came\n" +
"And those spans, trussed and arched\n" +
"Hold up our lives as we go back again\n" +
"To how we thought then\n" +
"To how we thought we thought then";
String paragraphTwoText = "I have seen sorrow's face,\n" +
"But she is ever turned away\n" +
"And her words leave me blind\n" +
"Her eyes make me mute\n" +
"I do not understand what she says to me\n" +
"I do not know if to obey\n" +
"Or attempt a flood of tears";
String paragraphThreeText = "I have seen her face\n" +
"She does not speak\n" +
"She does not weep\n" +
"She does not know me\n" +
"For I am but a stone fitted in place\n" +
"On the bridge where she walks";
String attribution = "--Toc the Younger";
Paragraph p = new Paragraph(paragraphOneText);
//Current default pagesize is A5, so any new pages will be created as A5
doc.add(p);
//Changing default pagesize will affect any new pages that are created
pdfDoc.setDefaultPageSize(PageSize.A5.rotate());
//Adding an areabreak of type NEXT_PAGE will force the creation of a new page
doc.add(new AreaBreak(AreaBreakType.NEXT_PAGE));
p = new Paragraph(paragraphTwoText);
doc.add(p);
pdfDoc.setDefaultPageSize(PageSize.A5);
doc.add(new AreaBreak(AreaBreakType.NEXT_PAGE));
p = new Paragraph(paragraphThreeText);
doc.add(p);
p= new Paragraph(attribution);
doc.add(p);
doc.close();
}
【讨论】：
也许它会起作用
Rectangle one = new Rectangle(70,140);
document.setPageSize(one);
【讨论】：