Aspose.Pdf for .NET文档处理控件发布了新的11.7版本

作者：控件中国网出处：控件中国网 2016-07-04 11:01:04 阅读：8

ASPOSE公司对旗下产品Aspose.Pdf for .NET控件又发布了新的11.7版本，为了满足广大客户的需求，该PDF文档处理和转换控件在持续的更新和增强，下面就来看下这次更新的主要内容：

1、由于一个PDF文档很有可能包含了不同的数据层，新版本支持在转换PDF为HTML时呈现PDF文档层

// Open the PDF file

Document doc = new Document(“input.pdf”);

// Instantiate HTML SaveOptions object

HtmlSaveOptions htmlOptions = new HtmlSaveOptions();

// Specify to render PDF document layers separately in output HTML

htmlOptions.ConvertMarkedContentToLayers = true;

// Save the document

doc.Save(“output.html”, htmlOptions);

2、为ColumnAdjustment枚举新增了一个AutoFitToWindows值，用于调整表格列先自适应窗口

//Instntiate the Pdf object by calling its empty constructor

Document doc = new Document();

//Create the section in the Pdf object

Page sec1 = doc.Pages.Add();

//Instantiate a table object

Aspose.Pdf.Table tab1 = new Aspose.Pdf.Table();

//Add the table in paragraphs collection of the desired section

sec1.Paragraphs.Add(tab1);

//Set with column widths of the table

tab1.ColumnWidths = “50 50 50″;

tab1.ColumnAdjustment = ColumnAdjustment.AutoFitToWindow;

//Set default cell border using BorderInfo object

tab1.DefaultCellBorder = new Aspose.Pdf.BorderInfo(Aspose.Pdf.BorderSide.All, 0.1F);

//Set table border using another customized BorderInfo object

tab1.Border = new Aspose.Pdf.BorderInfo(Aspose.Pdf.BorderSide.All, 1F);

//Create MarginInfo object and set its left, bottom, right and top margins

Aspose.Pdf.MarginInfo margin = new Aspose.Pdf.MarginInfo();

margin.Top = 5f;

margin.Left = 5f;

margin.Right = 5f;

margin.Bottom = 5f;

//Set the default cell padding to the MarginInfo object

tab1.DefaultCellPadding = margin;

//Create rows in the table and then cells in the rows

Aspose.Pdf.Row row1 = tab1.Rows.Add();

row1.Cells.Add(“col1″);

row1.Cells.Add(“col2″);

row1.Cells.Add(“col3″);

Aspose.Pdf.Row row2 = tab1.Rows.Add();

row2.Cells.Add(“item1″);

row2.Cells.Add(“item2″);

row2.Cells.Add(“item3″);

//Save the Pdf

doc.Save(“ResultantFile.pdf”);

3.支持使用虚线创建图形对象，在为PDF文档添加对象时很多时候客户需要是用虚线来绘制图形，那么新发布的Aspose.Pdf 11.7为开发人员提供了该功能

// instantiate Document instance

Document doc = new Document();

// add page to pages collection of Document object

Page page = doc.Pages.Add();

// create Drawing object with certain dimensions

Aspose.Pdf.Drawing.Graph canvas = new Aspose.Pdf.Drawing.Graph(100, 400);

// add drawing object to paragraphs collection of page instance

page.Paragraphs.Add(canvas);

// create Line object

Aspose.Pdf.Drawing.Line line = new Aspose.Pdf.Drawing.Line(new float[] { 100, 100, 200, 100 });

// set color for Line object

line.GraphInfo.Color = Aspose.Pdf.Color.Red;

// specify dash array for line object

line.GraphInfo.DashArray = new int[] { 0, 1, 0 };

// set the dash phase for Line instance

line.GraphInfo.DashPhase = 1;

// add line to shapes collection of drawing object

canvas.Shapes.Add(line);

// save PDF document

doc.Save(“DashLineInBlack.pdf”);

4.增强了XPS转换为PDF时的性能

5.增强了插入PDF文件的图片质量

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