Aspose.Words for .NET图像处理教程——在Word文档的页面上插入条形码
Aspose.Words For .Net是一种高级Word文档处理API,用于执行各种文档管理和操作任务。API支持生成,修改,转换,呈现和打印文档,而无需在跨平台应用程序中直接使用Microsoft Word。此外,API支持所有流行的Word处理文件格式,并允许将Word文档导出或转换为固定布局文件格式和最常用的图像/多媒体格式。
接下来我们将进入关于“图像处理”的介绍,在Aspose.Words中学会如何在Word文档的所有或特定页面上添加相同或不同的条形码。
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在文档的每一页上插入条形码
没有直接的方法可以在文档的所有页面上添加条形码,但是可以使用DocumentBuilder.MoveToSection、DocumentBuilder.MoveToHeaderFooter和DocumentBuilder.InsertImage方法移动到任何部分或页眉/页脚,并插入条形码图像。以下代码示例在文档的每一页上插入条形码图像。
// The path to the documents directory. string dataDir = RunExamples.GetDataDir_WorkingWithImages(); // Create a blank documenet. Document doc = new Document(); DocumentBuilder builder = new DocumentBuilder(doc); // The number of pages the document should have. int numPages = 4; // The document starts with one section, insert the barcode into this existing section. InsertBarcodeIntoFooter(builder, doc.FirstSection, 1, HeaderFooterType.FooterPrimary); for (int i = 1; i < numPages; i++) { // Clone the first section and add it into the end of the document. Section cloneSection = (Section)doc.FirstSection.Clone(false); cloneSection.PageSetup.SectionStart = SectionStart.NewPage; doc.AppendChild(cloneSection); // Insert the barcode and other information into the footer of the section. InsertBarcodeIntoFooter(builder, cloneSection, i, HeaderFooterType.FooterPrimary); } dataDir = dataDir + "Document_out.docx"; // Save the document as a PDF to disk. You can also save this directly to a stream. doc.Save(dataDir);
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private static void InsertBarcodeIntoFooter(DocumentBuilder builder, Section section, int pageId, HeaderFooterType footerType) { // Move to the footer type in the specific section. builder.MoveToSection(section.Document.IndexOf(section)); builder.MoveToHeaderFooter(footerType); // Insert the barcode, then move to the next line and insert the ID along with the page number. // Use pageId if you need to insert a different barcode on each page. 0 = First page, 1 = Second page etc. builder.InsertImage(System.Drawing.Image.FromFile( RunExamples.GetDataDir_WorkingWithImages() + "Barcode1.png")); builder.Writeln(); builder.Write("1234567890"); builder.InsertField("PAGE"); // Create a right aligned tab at the right margin. double tabPos = section.PageSetup.PageWidth - section.PageSetup.RightMargin - section.PageSetup.LeftMargin; builder.CurrentParagraph.ParagraphFormat.TabStops.Add(new TabStop(tabPos, TabAlignment.Right, TabLeader.None)); // Move to the right hand side of the page and insert the page and page total. builder.Write(ControlChar.Tab); builder.InsertField("PAGE"); builder.Write(" of "); builder.InsertField("NUMPAGES"); }
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