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RTF (Rich Text Format) is a cross-platform document developed by Microsoft in the 1980s. RTF can be opened by most word processors, and it is also convenient for editing. But when it comes to sharing and printing documents in daily work, it’s more recommended to convert the RTF to PDF for further processing. In this article, you will learn how to convert RTF to PDF programmatically using Spire.Doc for .NET.
Install Spire.Doc for .NET
To begin with, you need to add the DLL files included in the Spire.Doc for .NET package as references in your .NET project. The DLL files can be either downloaded from this link or installed via NuGet.
PM> Install-Package Spire.Doc
Convert RTF to PDF in C# and VB.NET
Spire.Doc for .NET enables you to directly load a file with .rtf extension and then convert it to PDF with only three lines of code. The detailed steps are as follows.
- Create a Document instance.
- Load a sample RTF document using Document.LoadFromFile() method.
- Save the document as a PDF file using Document.SaveToFile() method.
- C#
- VB.NET
using Spire.Doc;
namespace RTFtoPDF
{
class Program
{
static void Main(string[] args)
{
//Create a Document instance
Document doc = new Document();
//Load a sample RTF document
doc.LoadFromFile("sample.rtf", FileFormat.Rtf);
//Save it to PDF
doc.SaveToFile("RTFtoPDF.pdf", FileFormat.PDF);
}
}
}
Apply for a Temporary License
If you'd like to remove the evaluation message from the generated documents, or to get rid of the function limitations, please request a 30-day trial license for yourself.
After finishing designs of shapes in slides, accidental changes might happen if we haven't made necessary protecting settings. Locking shapes from being selected firstly or preventing changes to shape attributes (like size, position, rotation etc.) can be used to prevent changes to shapes. It's necessary to mention that Spire.Presentation supports the features to prevent changes to shapes. This article is going to introduce how to prevent or allow changes to shapes in C# using Spire.Presentation.
Note: before start, please download the latest version of Spire.Presentation and add the .dll in the bin folder as the reference of Visual Studio.
Step 1: create a presentation file and add a sample shape.
Presentation presentation = new Presentation();
IAutoShape shape = presentation.Slides[0].Shapes.AppendShape(ShapeType.Rectangle, new RectangleF(50, 100, 450, 150));
Step 2: format the sample shape.
shape.Fill.FillType = FillFormatType.None;
shape.ShapeStyle.LineColor.Color = Color.DarkGreen;
shape.TextFrame.Paragraphs[0].Alignment = TextAlignmentType.Justify;
shape.TextFrame.Text = "Demo for locking shapes:\n Green/Black stands for editable.\n Grey points stands for non-editable.";
shape.TextFrame.Paragraphs[0].TextRanges[0].LatinFont = new TextFont("Arial Rounded MT Bold");
shape.TextFrame.Paragraphs[0].TextRanges[0].Fill.FillType = FillFormatType.Solid;
shape.TextFrame.Paragraphs[0].TextRanges[0].Fill.SolidColor.Color = Color.Black;
Step 3: set which operations are disabled on the shape to prevent changes. Here the selection and rotation changing of the shape are allowed while the changes of size, position, shape type, text, rotation, handles, and aspect ratio are not allowed.
shape.Locking.RotationProtection = false;
shape.Locking.SelectionProtection = false;
shape.Locking.ResizeProtection = true;
shape.Locking.PositionProtection = true;
shape.Locking.ShapeTypeProtection = true;
shape.Locking.AspectRatioProtection = true;
shape.Locking.TextEditingProtection = true;
shape.Locking.AdjustHandlesProtection = true;
Step 4: save the document and launch to see effects.
presentation.SaveToFile("result.pptx", FileFormat.Pptx2010);
System.Diagnostics.Process.Start("result.pptx");
Effects:
Full codes:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Spire.Presentation;
using Spire.Presentation.Drawing;
using System.Drawing;
namespace test
{
class Program
{
static void Main(string[] args)
{
Presentation presentation = new Presentation();
IAutoShape shape = presentation.Slides[0].Shapes.AppendShape(ShapeType.Rectangle, new RectangleF(50, 100, 450, 150));
shape.Fill.FillType = FillFormatType.None;
shape.ShapeStyle.LineColor.Color = Color.DarkGreen;
shape.TextFrame.Paragraphs[0].Alignment = TextAlignmentType.Justify;
shape.TextFrame.Text = "Demo for locking shapes:\n Green/Black stands for editable.\n Grey stands for non-editable.";
shape.TextFrame.Paragraphs[0].TextRanges[0].LatinFont = new TextFont("Arial Rounded MT Bold");
shape.TextFrame.Paragraphs[0].TextRanges[0].Fill.FillType = FillFormatType.Solid;
shape.TextFrame.Paragraphs[0].TextRanges[0].Fill.SolidColor.Color = Color.Black;
shape.Locking.RotationProtection = false;
shape.Locking.SelectionProtection = false;
shape.Locking.ResizeProtection = true;
shape.Locking.PositionProtection = true;
shape.Locking.ShapeTypeProtection = true;
shape.Locking.AspectRatioProtection = true;
shape.Locking.TextEditingProtection = true;
shape.Locking.AdjustHandlesProtection = true;
presentation.SaveToFile("result.pptx", FileFormat.Pptx2010);
System.Diagnostics.Process.Start("result.pptx");
}
}
}
Spire.Doc supports to insert any type of file such as Excel, PDF, PowerPoint and etc, as OLE object into a Word document. In this article, you'll learn how to add a media file (audio or video) to a Word document using Spire.Doc in C#, VB.NET.
In the class of DocOleObject, a method named AppendOleObject(Stream oleStream, DocPicture olePicture, string fileExtension) is available for users to insert media file with the extension of mp3, mp4, avi or any other format into a Word document. The three parameters in this method represent:
- oleStream: The OLE file stream.
- olePicture: The image (icon) that is displayed in Word to show the OLE object.
- fileExtension: The file extension.
Code Snippet:
Step 1: Initialize a new instance of Document class and add a new section.
Document doc = new Document(); Section section = doc.AddSection();
Step 2: Add a new paragraph, append some formatted text into the paragraph.
Paragraph para1 = section.AddParagraph();
para1.AppendText("Double click the PLAY button to view the video file");
ParagraphStyle style1 = new ParagraphStyle(doc);
style1.Name = "Style";
style1.CharacterFormat.FontName = "Calibri";
style1.CharacterFormat.FontSize = 15;
style1.CharacterFormat.Bold = true;
style1.CharacterFormat.TextColor = Color.Red;
doc.Styles.Add(style1);
para1.ApplyStyle(style1.Name);
Step 3: Add another paragraph, append a video file as OLE object into the paragraph.
Paragraph para2 = section.AddParagraph();
Stream s = File.OpenRead("media.mp4");
DocPicture pic = new DocPicture(doc);
pic.LoadImage(Image.FromFile("button.png"));
para2.AppendOleObject(s, pic, "mp4");
Step 4: Save the view the file.
doc.SaveToFile("Result.docx", FileFormat.Docx2010);
System.Diagnostics.Process.Start("Result.docx");
Output:
Full Code:
using Spire.Doc;
using Spire.Doc.Documents;
using Spire.Doc.Fields;
using System.Drawing;
using System.IO;
namespace EmbedMediaFile
{
class Program
{
static void Main(string[] args)
{
//create a new Word document and insert section
Document doc = new Document();
Section section = doc.AddSection();
//add a paragraph and append some text
Paragraph para1 = section.AddParagraph();
para1.AppendText("Double click the PLAY button to view the video file");
ParagraphStyle style1 = new ParagraphStyle(doc);
style1.Name = "Style";
style1.CharacterFormat.FontName = "Calibri";
style1.CharacterFormat.FontSize = 15;
style1.CharacterFormat.Bold = true;
style1.CharacterFormat.TextColor = Color.Red;
doc.Styles.Add(style1);
para1.ApplyStyle(style1.Name);
//add another paragraph, append video file as OLE object in Word
Paragraph para2 = section.AddParagraph();
Stream s = File.OpenRead("media.mp4");
DocPicture pic = new DocPicture(doc);
pic.LoadImage(Image.FromFile("button.png"));
para2.AppendOleObject(s, pic, "mp4");
//save and view the file
doc.SaveToFile("Result.docx", FileFormat.Docx2010);
System.Diagnostics.Process.Start("Result.docx");
}
}
}
Imports Spire.Doc
Imports Spire.Doc.Documents
Imports Spire.Doc.Fields
Imports System.Drawing
Imports System.IO
Namespace EmbedMediaFile
Class Program
Private Shared Sub Main(args As String())
'create a new Word document and insert section
Dim doc As New Document()
Dim section As Section = doc.AddSection()
'add a paragraph and append some text
Dim para1 As Paragraph = section.AddParagraph()
para1.AppendText("Double click the PLAY button to view the video file")
Dim style1 As New ParagraphStyle(doc)
style1.Name = "Style"
style1.CharacterFormat.FontName = "Calibri"
style1.CharacterFormat.FontSize = 15
style1.CharacterFormat.Bold = True
style1.CharacterFormat.TextColor = Color.Red
doc.Styles.Add(style1)
para1.ApplyStyle(style1.Name)
'add another paragraph, append video file as OLE object in Word
Dim para2 As Paragraph = section.AddParagraph()
Dim s As Stream = File.OpenRead("media.mp4")
Dim pic As New DocPicture(doc)
pic.LoadImage(Image.FromFile("button.png"))
para2.AppendOleObject(s, pic, "mp4")
'save and view the file
doc.SaveToFile("Result.docx", FileFormat.Docx2010)
System.Diagnostics.Process.Start("Result.docx")
End Sub
End Class
End Namespace
