我想在c#中将pdf文件从A4大小拆分为字母大小,现在我用此代码拆分它,但是它保持相同的大小
string inPDF = Application.StartupPath + "\\log\\input.pdf";
string outPDF = Application.StartupPath + "\\log\\output.pdf";\
PdfStream pdfStream = new PdfStream(inPDF, FileMode.Open);
PdfStream newPdfStream = new PdfStream(outPDF, FileMode.Create);
PdfReader reader = new PdfReader(pdfStream);
PageSize = reader.getPageSize(1);
Document document = new Document(PageSize);
PdfWriter writer = PdfWriter.getInstance(document, newPdfStream);
document.open();
PdfContentByte content = writer.Directcontent();
PdfImportPage page = writer.getImportPage(reader, 1);
content.addTemplate(page , 0 , 0);
content.Fill();
document.setPageSize(PageSize);
document.Close();
reader.Close();
如何将pdf文件拆分为A4大小一半的小尺寸??? 感谢你阅读我的帖子!
我用以下代码修复了它:
FileStream newPdfStream = new FileStream(destineFile, FileMode.Create, FileAccess.ReadWrite);
PdfReader reader = new PdfReader(sourceFile);
iTextSharp.text.Rectangle pageSize = new iTextSharp.text.Rectangle(
reader.GetPageSize(1).Width,
(reader.GetPageSize(1).Height - reader.GetPageSize(1).Height * 2 / 3));
Document document = new Document(pageSize);
PdfWriter writer = PdfWriter.GetInstance(document, newPdfStream);
document.Open();
PdfContentByte content = writer.DirectContent;
PdfImportedPage page = writer.GetImportedPage(reader, 1);
content.AddTemplate(page, 0, -reader.GetPageSize(1).Height * 2 / 3);
content.SetColorFill(BaseColor.WHITE);
content.Fill();
document.SetPageSize(pageSize);
document.NewPage();
现在它运作良好。你可以在pageSize变量中调整文件大小。祝你好运 !