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Save PowerPoint file to Stream and Load PowerPoint file from Stream
2014-06-12 02:48:45 Written by KoohjiSpire.Presentation is a powerful and easy-to-use .NET component, especially designed for developers. Using Spire.Presentation you can generate, modify, convert, render, and print documents without installing Microsoft PowerPoint on your machine. In this document, I will introduce you how to create PowerPoint file and save it to stream. I also introduce you how to load PowerPoint file from stream. Check it below.
Create PowerPoint file and save it to Stream
Step 1: Create Presentation instance.
Presentation presentation = new Presentation();
Step 2: Set background image.
string ImageFile = "bg.png"; RectangleF rect = new RectangleF(0, 0, presentation.SlideSize.Size.Width, presentation.SlideSize.Size.Height); presentation.Slides[0].Shapes.AppendEmbedImage(ShapeType.Rectangle, ImageFile, rect); presentation.Slides[0].Shapes[0].Line.FillFormat.SolidFillColor.Color = Color.FloralWhite;
Step 3: Add text to PowerPoint document.
IAutoShape shape = presentation.Slides[0].Shapes.AppendShape(ShapeType.Rectangle, new RectangleF(50, 70, 450, 150)); shape.Fill.FillType = FillFormatType.None; shape.ShapeStyle.LineColor.Color = Color.White; //add text to shape shape.TextFrame.Text = "This demo shows how to Create PowerPoint file and save it to Stream."; shape.TextFrame.Paragraphs[0].TextRanges[0].Fill.FillType = FillFormatType.Solid; shape.TextFrame.Paragraphs[0].TextRanges[0].Fill.SolidColor.Color = Color.Black;
Step 4: Save document to stream.
FileStream to_stream = new FileStream("To_stream.pptx", FileMode.Create);
presentation.SaveToFile(to_stream, FileFormat.Pptx2010);
to_stream.Close();
Preview the generated PowerPoint file:
Load PowerPoint file from stream.
Step 1: Create Presentation instance.
Presentation presentationLoad = new Presentation();
Step 2: Load PowerPoint file from stream.
FileStream from_stream = File.OpenRead("sample.pptx");
presentationLoad.LoadFromStream(from_stream, FileFormat.Pptx2010);
Step 3: Save the document.
presentationLoad.SaveToFile("From_stream.pptx",FileFormat.Pptx2010);
from_stream.Dispose();
Preview the PowerPoint file:
Full code:
using Spire.Presentation;
using Spire.Presentation.Drawing;
using System.Drawing;
using System.IO;
namespace SavePPTtoStream
{
class Program
{
static void Main(string[] args)
{
//A: create PowerPoint file and save it to stream
Presentation presentation = new Presentation();
//set background Image
string ImageFile = "bg.png";
RectangleF rect = new RectangleF(0, 0, presentation.SlideSize.Size.Width, presentation.SlideSize.Size.Height);
presentation.Slides[0].Shapes.AppendEmbedImage(ShapeType.Rectangle, ImageFile, rect);
presentation.Slides[0].Shapes[0].Line.FillFormat.SolidFillColor.Color = Color.FloralWhite;
//append new shape
IAutoShape shape = presentation.Slides[0].Shapes.AppendShape(ShapeType.Rectangle, new RectangleF(50, 70, 450, 150));
shape.Fill.FillType = FillFormatType.None;
shape.ShapeStyle.LineColor.Color = Color.White;
//add text to shape
shape.TextFrame.Text = "This demo shows how to Create PowerPoint file and save it to Stream.";
shape.TextFrame.Paragraphs[0].TextRanges[0].Fill.FillType = FillFormatType.Solid;
shape.TextFrame.Paragraphs[0].TextRanges[0].Fill.SolidColor.Color = Color.Black;
//save to Stream
FileStream to_stream = new FileStream("To_stream.pptx", FileMode.Create);
presentation.SaveToFile(to_stream, FileFormat.Pptx2010);
to_stream.Close();
System.Diagnostics.Process.Start("To_stream.pptx");
//B: Load PowerPoint file from Stream
Presentation presentationLoad = new Presentation();
//load PowerPoint file from stream
FileStream from_stream = File.OpenRead("sample.pptx");
presentationLoad.LoadFromStream(from_stream, FileFormat.Pptx2010);
//save the document
presentationLoad.SaveToFile("From_stream.pptx", FileFormat.Pptx2010);
from_stream.Dispose();
System.Diagnostics.Process.Start("From_stream.pptx");
}
}
}
If you couldn't successfully use Spire.Presentation, please refer Spire.Presentation Quick Start which can guide you quickly use Spire.Presentation.
In Word document, users can add new page break or remove existing page breaks. This sample shows how to remove page breaks from the word document by using Spire.Doc. Spire.Doc supports to remove the page breaks from the word document from the format of .docx, .doc, and RTF etc.
Firstly make sure Spire.Doc for .NET has been installed correctly and then add Spire.Doc.dll as reference in the downloaded Bin folder though the below path: ".. \Spire.Doc\Bin\NET4.0\ Spire.Doc.dll". Here comes to the details of how to remove page breaks in C#.
//Create a new word document and load from the file.
Document document = new Document();
document.LoadFromFile("sample.docx");
// Traverse every paragraph of the first section of the document
for (int j = 0; j < document.Sections[0].Paragraphs.Count; j++)
{
Paragraph p = document.Sections[0].Paragraphs[j];
// Traverse every child object of a paragraph
for (int i = 0; i < p.ChildObjects.Count; i++)
{
DocumentObject obj = p.ChildObjects[i];
//Find the page break object
if (obj.DocumentObjectType == DocumentObjectType.Break)
{
Break b = obj as Break;
// Remove the page break object from paragraph
p.ChildObjects.Remove(b);
//save the document to file.
document.SaveToFile("result.docx");
Please check the effective screenshot:
Full codes:
using Spire.Doc;
using Spire.Doc.Documents;
namespace RemovePageBreak
{
class Program
{
static void Main(string[] args)
{
Document document = new Document();
document.LoadFromFile("sample.docx", FileFormat.Docx);
for (int j = 0; j < document.Sections[0].Paragraphs.Count; j++)
{
Paragraph p = document.Sections[0].Paragraphs[j];
for (int i = 0; i < p.ChildObjects.Count; i++)
{
DocumentObject obj = p.ChildObjects[i];
if (obj.DocumentObjectType == DocumentObjectType.Break)
{
Break b = obj as Break;
p.ChildObjects.Remove(b);
}
}
}
document.SaveToFile("result.docx", FileFormat.Docx);
System.Diagnostics.Process.Start("result.docx");
}
}
}
Spire.Presentation is a powerful and easy-to-use .NET component, especially designed for developers. Using Spire.Presentation you can generate, modify, convert, render, and print documents without installing Microsoft PowerPoint on your machine. There is a document in our website introducing you how to insert table. And in this document, you will be introduced how to edit a table within a PPT document.
Step 1: Create a Presentation instance and load the file.
Presentation presentation = new Presentation();
presentation.LoadFromFile("table.pptx");
Step 2: Store the data used in replacement in string [].
string[] str = new string[] { "Germany", "Berlin", "Europe", "0152458", "20860000" };
Step 3: Get the table within the PPT document.
ITable table = null;
foreach (IShape shape in presentation.Slides[0].Shapes)
{
if (shape is ITable)
{
table = (ITable) shape;
}
}
Step 4: Fill in the third row with new data and set the HighlightColor.
for (int i = 0; i < table.ColumnsList.Count;i++ )
{
//replace the data in cell
table[i, 2].TextFrame.Text = str[i];
//set the highlightcolor
table[i, 2].TextFrame.TextRange.HighlightColor.Color = Color.BlueViolet;
}
Step 5: Set the style of the table.
table.StylePreset = TableStylePreset.LightStyle1Accent2;
Step 6: Save the document.
presentation.SaveToFile("result.pptx", FileFormat.Pptx2010);
Download and install Spire.Presentation for .NET and refer to below code to edit table within PPT document.
Screenshots and full code:
Before:
After:
using Spire.Presentation;
using System.Drawing;
namespace EditTable
{
class Program
{
static void Main(string[] args)
{
//create a PPT document
Presentation presentation = new Presentation();
presentation.LoadFromFile("table.pptx");
//the data used in replacement
string[] str = new string[] { "Germany", "Berlin", "Europe", "0152458", "20860000" };
ITable table = null;
//get the table in PPT document
foreach (IShape shape in presentation.Slides[0].Shapes)
{
if (shape is ITable)
{
table = (ITable)shape;
//change the style of table
table.StylePreset = TableStylePreset.LightStyle1Accent2;
for (int i = 0; i < table.ColumnsList.Count; i++)
{
//replace the data in cell
table[i, 2].TextFrame.Text = str[i];
//set the highlightcolor
table[i, 2].TextFrame.TextRange.HighlightColor.Color = Color.BlueViolet;
}
}
}
//save the document
presentation.SaveToFile("result.pptx", FileFormat.Pptx2010);
System.Diagnostics.Process.Start("result.pptx");
}
}
}
Imports Spire.Presentation
Imports System.Drawing
Namespace EditTbale
Class Program
Private Shared Sub Main(args As String())
'create a PPT document
Dim presentation As New Presentation()
presentation.LoadFromFile("table.pptx")
'the data used in replacement
Dim str As String() = New String() {"Germany", "Berlin", "Europe", "0152458", "20860000"}
Dim table As ITable = Nothing
'get the table in PPT document
For Each shape As IShape In presentation.Slides(0).Shapes
If TypeOf shape Is ITable Then
table = DirectCast(shape, ITable)
'change the style of table
table.StylePreset = TableStylePreset.LightStyle1Accent2
For i As Integer = 0 To table.ColumnsList.Count - 1
'replace the data in cell
table(i, 2).TextFrame.Text = str(i)
'set the highlightcolor
table(i, 2).TextFrame.TextRange.HighlightColor.Color = Color.BlueViolet
Next
End If
Next
'save the document
presentation.SaveToFile("result.pptx", FileFormat.Pptx2010)
System.Diagnostics.Process.Start("result.pptx")
End Sub
End Class
End Namespace
If you couldn't successfully use Spire.Presentation, please refer Spire.Presentation Quick Start which can guide you quickly use Spire.Presentation.
