itext绝对定位文本

在itext中我有一个块/短语/段落（我不介意哪个），我想在页面上的其他位置定位，例如300 x 200.我该怎么做？

Answer 1

最后我写了自己的方法来做到这一点。

private void PlaceChunck(String text, int x, int y) { PdfContentByte cb = writer.DirectContent; BaseFont bf = BaseFont.CreateFont(BaseFont.HELVETICA, BaseFont.CP1252, BaseFont.NOT_EMBEDDED); cb.SaveState(); cb.BeginText(); cb.MoveText(x, y); cb.SetFontAndSize(bf, 12); cb.ShowText(text); cb.EndText(); cb.RestoreState(); } 

Answer 2

这是一个包含所有正确的套管和try / catch块的版本：

  private static void absText(String text, int x, int y) { try { PdfContentByte cb = writer.getDirectContent(); BaseFont bf = BaseFont.createFont(BaseFont.HELVETICA, BaseFont.CP1252, BaseFont.NOT_EMBEDDED); cb.saveState(); cb.beginText(); cb.moveText(x, y); cb.setFontAndSize(bf, 12); cb.showText(text); cb.endText(); cb.restoreState(); } catch (DocumentException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } } 

Answer 3

我沿着这些方向做了一些事情，也许它会帮助别人：

 ColumnText ct = new ColumnText(writer.getDirectContent()); ct.setSimpleColumn(left,bottom,right,top); ct.setText(new Phrase("String")); ct.go(); 

Answer 4

在我的情况下，只有这个解决方案正常

 PdfWriter pdfWriter = PdfWriter.getInstance(document, new FileOutputStream(FILE)); 

添加方法

 private void addTextData(Document document, String text) { PdfContentByte cb = pdfWriter.getDirectContent(); cb.beginText(); try { BaseFont f_cn = BaseFont.createFont(BaseFont.HELVETICA, BaseFont.CP1252, BaseFont.NOT_EMBEDDED); cb.setFontAndSize(f_cn, 40); float requiredX = 50; float requiredY = 50; Paint paint = new Paint(); paint.setTextSize(40); Typeface typeface=Typeface.createFromAsset(getAssets(), "Helvetica.ttf"); paint.setTypeface(typeface); paint.setColor(Color.BLACK); paint.setStyle(Paint.Style.FILL); Rect result = new Rect(); paint.getTextBounds(text, 0, text.length(), result); Log.i("Text dimensions", "Width: "+result.width()+"-Height: "+result.height()); float calculatedY = document.getPageSize().getHeight() - result.height() - requiredY; cb.setTextMatrix(requiredX, calculatedY); cb.showText(text); cb.endText(); } catch (DocumentException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } } 

这将对您有所帮助。

Answer 5

希望这对你有所帮助！ 这是我的代码……

  Document document = new Document(PageSize.A4); PdfWriter writer = PdfWriter.getInstance(document, output); document.open(); FixText("Add Your Text",400,700,writer,14); document.close(); 

添加function：

  private static void FixText(String text, int x, int y,PdfWriter writer,int size) { try { PdfContentByte cb = writer.getDirectContent(); BaseFont bf = BaseFont.createFont(BaseFont.HELVETICA, BaseFont.CP1252, BaseFont.NOT_EMBEDDED); cb.saveState(); cb.beginText(); cb.moveText(x, y); cb.setFontAndSize(bf, size); cb.showText(text); cb.endText(); cb.restoreState(); } catch (DocumentException | IOException e) { e.printStackTrace(); } }