如何在iText 7中創建頁面大小不相等的文檔

Question

如何在iText 7中創建頁面大小不相同的文檔？

iText7有可能嗎？

在iText5中，我使用了document.setPageSize()和document.newPage()。

Answer 1

如果您添加通過高層次的API（Document.add()及其同類）的內容，以及所需的頁面大小是直接關係到具體內容，修改默認頁面大小通過PdfDocument.setDefaultPageSize可能是最乾淨和最簡單的方式去做，像這樣：

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(); 
} 

Answer 2

也許它可能工作

Rectangle one = new Rectangle(70,140); 
document.setPageSize(one);