How to convert Word to PostScript in C#
PostScript is a page description language that is an industry standard for outputting high-resolution text and graphics. From Version 6.11.2, Spire.Doc supports to convert doc/docx to a postscript file in both WinForm app and ASP.NET app. This article will demonstrate how to convert word to PostScript in C# and VB.NET.
Firstly, view the sample word document:
using Spire.Doc;
namespace Word
{
class Program
{
static void Main(string[] args)
{
Document doc = new Document();
doc.LoadFromFile("Sample.docx", FileFormat.Docx2010);
doc.SaveToFile("Result.ps", FileFormat.PostScript);
}
}
}
Imports Spire.Doc
Namespace Word
Class Program
Private Shared Sub Main(ByVal args As String())
Dim doc As Document = New Document()
doc.LoadFromFile("Sample.docx", FileFormat.Docx2010)
doc.SaveToFile("Result.ps", FileFormat.PostScript)
End Sub
End Class
End Namespace
Effective screenshot of the resulted PostScript file converted from .docx document:
Java: Convert PDF to PDF/A
PDF/A is a kind of PDF format designed for archiving and long-term preservation of electronic documents. Unlike paper documents that are easily damaged or smeared, PDF/A format ensures that documents can be reproduced in exactly the same way even after long-term storage. This article will demonstrate how to convert PDF to PDF/A-1A, 2A, 3A, 1B, 2B and 3B compliant PDF using Spire.PDF for Java.
Install Spire.PDF for Java
First of all, you're required to add the Spire.PDF.jar file as a dependency in your Java program. The JAR file can be downloaded from this link. If you use Maven, you can easily import the JAR file in your application by adding the following code to your project's pom.xml file.
<repositories>
<repository>
<id>com.e-iceblue</id>
<name>e-iceblue</name>
<url>https://repo.e-iceblue.com/nexus/content/groups/public/</url>
</repository>
</repositories>
<dependencies>
<dependency>
<groupId>e-iceblue</groupId>
<artifactId>spire.pdf</artifactId>
<version>10.10.7</version>
</dependency>
</dependencies>
Convert PDF to PDF/A
The detailed steps are as follows:
- Create a PdfStandardsConverter instance, and pass in a sample PDF file as a parameter.
- Convert the sample file to PdfA1A conformance level using PdfStandardsConverter.toPdfA1A() method.
- Convert the sample file to PdfA1B conformance level using PdfStandardsConverter. toPdfA1B() method.
- Convert the sample file to PdfA2A conformance level using PdfStandardsConverter. toPdfA2A() method.
- Convert the sample file to PdfA2B conformance level using PdfStandardsConverter. toPdfA2B() method.
- Convert the sample file to PdfA3A conformance level using PdfStandardsConverter. toPdfA3A() method.
- Convert the sample file to PdfA3B conformance level using PdfStandardsConverter. toPdfA3B() method.
- Java
import com.spire.pdf.conversion.PdfStandardsConverter;
public class ConvertPdfToPdfA {
public static void main(String[] args) {
//Create a PdfStandardsConverter instance, and pass in a sample file as a parameter
PdfStandardsConverter converter = new PdfStandardsConverter("sample.pdf");
//Convert to PdfA1A
converter.toPdfA1A("output/ToPdfA1A.pdf");
//Convert to PdfA1B
converter.toPdfA1B("output/ToPdfA1B.pdf");
//Convert to PdfA2A
converter.toPdfA2A( "output/ToPdfA2A.pdf");
//Convert to PdfA2B
converter.toPdfA2B("output/ToPdfA2B.pdf");
//Convert to PdfA3A
converter.toPdfA3A("output/ToPdfA3A.pdf");
//Convert to PdfA3B
converter.toPdfA3B("output/ToPdfA3B.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.
Java: Extract Images from a PDF Document
If you'd like to use the images embedded in a PDF document elsewhere, you can extract and save them in a folder. This article will show you how to programmatically extract images from a PDF document using Spire.PDF for Java.
Install Spire.PDF for Java
First of all, you're required to add the Spire.Pdf.jar file as a dependency in your Java program. The JAR file can be downloaded from this link. If you use Maven, you can easily import the JAR file in your application by adding the following code to your project's pom.xml file.
<repositories>
<repository>
<id>com.e-iceblue</id>
<name>e-iceblue</name>
<url>https://repo.e-iceblue.com/nexus/content/groups/public/</url>
</repository>
</repositories>
<dependencies>
<dependency>
<groupId>e-iceblue</groupId>
<artifactId>spire.pdf</artifactId>
<version>10.10.7</version>
</dependency>
</dependencies>
Extract Images from a PDF Document
Spire.PDF for Java offers the PdfPageBase.extractImages() method to extract images from a PDF document. The detailed steps are listed below.
- Create a PdfDocument instance and load a PDF sample document using PdfDocument.loadFromFile() method.
- Loop through all pages of the document and extract images from the given page using PdfPageBase.extractImages() method.
- Specify the path and name of the output document.
- Save images as .png files.
- Java
import com.spire.pdf.PdfDocument;
import com.spire.pdf.PdfPageBase;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
public class ExtractImage {
public static void main(String[] args) throws IOException {
//create a PdfDocument instance
PdfDocument doc = new PdfDocument();
//load a PDF sample file
doc.loadFromFile("sample.pdf");
//declare an int variable
int index = 0;
//loop through all pages
for (PdfPageBase page : (Iterable<PdfPageBase>) doc.getPages()) {
//extract images from the given page
for (BufferedImage image : page.extractImages()) {
//specify the file path and name
File output = new File("C:\\Users\\Administrator\\Desktop\\ExtractedImages\\" + String.format("Image_%d.png", index++));
//save images as .png files
ImageIO.write(image, "PNG", output);
}
}
}
}
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.
Apply a Slide Master to a Presentation in C#, VB.NET
Every PowerPoint presentation has a slide master which contains all the styles for your slides. You can quickly change the look of your entire presentation by selecting the slide master, and then adopting a theme, adding a background picture or changing the color scheme.
In this article, you will learn how to access and customize the slide master in an existing presentation.
Source File:
Detail steps:
Step 1: Load the source file.
Presentation ppt = new Presentation(); ppt.LoadFromFile(@"sample.pptx");
Step 2: Get the first slide master from the presentation.
IMasterSlide masterSlide = ppt.Masters[0];
Step 3: Customize the background of the slide master.
string backgroundPic = "background.png"; RectangleF rect = new RectangleF(0, 0, ppt.SlideSize.Size.Width, ppt.SlideSize.Size.Height); masterSlide.SlideBackground.Fill.FillType = FillFormatType.Picture; IEmbedImage image = masterSlide.Shapes.AppendEmbedImage(ShapeType.Rectangle, backgroundPic, rect); masterSlide.SlideBackground.Fill.PictureFill.Picture.EmbedImage = image as IImageData;
Step 4: Change the color scheme.
masterSlide.Theme.ColorScheme.Accent1.Color = Color.Red; masterSlide.Theme.ColorScheme.Accent2.Color = Color.RosyBrown; masterSlide.Theme.ColorScheme.Accent3.Color = Color.Ivory; masterSlide.Theme.ColorScheme.Accent4.Color = Color.Lavender; masterSlide.Theme.ColorScheme.Accent5.Color = Color.Black;
Step 5: Add an image to the slide master. If you want, you can add any other document elements to slide master so that they can display on each slide.
string logo = "logo.png"; IEmbedImage imageShape = masterSlide.Shapes.AppendEmbedImage(ShapeType.Rectangle, logo, new RectangleF(40, 40, 240, 65)); imageShape.Line.FillFormat.FillType = FillFormatType.None;
Step 6: Save the document.
ppt.SaveToFile("result.pptx", FileFormat.Pptx2013);
Result:
Full code:
using Spire.Presentation;
using Spire.Presentation.Drawing;
using System.Drawing;
namespace ApplySlideMaster
{
class Program
{
static void Main(string[] args)
{
Presentation ppt = new Presentation();
ppt.LoadFromFile(@"sample.pptx");
IMasterSlide masterSlide = ppt.Masters[0];
string backgroundPic = "background.png";
string logo = "logo.png";
RectangleF rect = new RectangleF(0, 0, ppt.SlideSize.Size.Width, ppt.SlideSize.Size.Height);
masterSlide.SlideBackground.Fill.FillType = FillFormatType.Picture;
IEmbedImage image = masterSlide.Shapes.AppendEmbedImage(ShapeType.Rectangle, backgroundPic, rect);
masterSlide.SlideBackground.Fill.PictureFill.Picture.EmbedImage = image as IImageData;
masterSlide.Theme.ColorScheme.Accent1.Color = Color.Red;
masterSlide.Theme.ColorScheme.Accent2.Color = Color.RosyBrown;
masterSlide.Theme.ColorScheme.Accent3.Color = Color.Ivory;
masterSlide.Theme.ColorScheme.Accent4.Color = Color.Lavender;
masterSlide.Theme.ColorScheme.Accent5.Color = Color.Black;
IEmbedImage imageShape = masterSlide.Shapes.AppendEmbedImage
(ShapeType.Rectangle, logo, new RectangleF(40, 40, 240, 65));
imageShape.Line.FillFormat.FillType = FillFormatType.None;
ppt.SaveToFile("result.pptx", FileFormat.Pptx2013);
}
}
}
Imports Spire.Presentation
Imports Spire.Presentation.Drawing
Imports System.Drawing
Namespace ApplySlideMaster
Class Program
Private Shared Sub Main(args As String())
Dim ppt As New Presentation()
ppt.LoadFromFile("sample.pptx")
Dim masterSlide As IMasterSlide = ppt.Masters(0)
Dim backgroundPic As String = "background.png"
Dim logo As String = "logo.png"
Dim rect As New RectangleF(0, 0, ppt.SlideSize.Size.Width, ppt.SlideSize.Size.Height)
masterSlide.SlideBackground.Fill.FillType = FillFormatType.Picture
Dim image As IEmbedImage = masterSlide.Shapes.AppendEmbedImage(ShapeType.Rectangle, backgroundPic, rect)
masterSlide.SlideBackground.Fill.PictureFill.Picture.EmbedImage = TryCast(image, IImageData)
masterSlide.Theme.ColorScheme.Accent1.Color = Color.Red
masterSlide.Theme.ColorScheme.Accent2.Color = Color.RosyBrown
masterSlide.Theme.ColorScheme.Accent3.Color = Color.Ivory
masterSlide.Theme.ColorScheme.Accent4.Color = Color.Lavender
masterSlide.Theme.ColorScheme.Accent5.Color = Color.Black
Dim imageShape As IEmbedImage = masterSlide.Shapes.AppendEmbedImage(ShapeType.Rectangle, logo, New RectangleF(40, 40, 240, 65))
imageShape.Line.FillFormat.FillType = FillFormatType.None
ppt.SaveToFile("result.pptx", FileFormat.Pptx2013)
End Sub
End Class
End Namespace
Vertically align the text in table cell on Presentation slides
Spire.Presentation supports to align text vertically in a table cell on the presentation slides. In this article, we will show you how to use C# to align the text in table cell and set the text direction. Firstly, view the screenshot on Microsoft PowerPoint of the vertical alignment and the text direction:
Detail steps:
Step 1: Create a new PowerPoint document and load the sample document from file.
Presentation ppt = new Presentation();
ppt.LoadFromFile("Sample1.pptx",FileFormat.Pptx2010);
Step 2: Get the table shape from the first presentation slide.
ITable table = null;
foreach (IShape shape in ppt.Slides[0].Shapes)
{
if (shape is ITable)
{
table = (ITable)shape;
Step 3: Aligning the text vertically and set the text direction.
table[i, 0].TextAnchorType = TextAnchorType.Center; table[i, 0].VerticalTextType = VerticalTextType.Vertical270; table[i, 1].TextAnchorType = TextAnchorType.Center; table[i, 1].VerticalTextType = VerticalTextType.Horizontal; table[i, 2].TextAnchorType = TextAnchorType.Center; table[i, 2].VerticalTextType = VerticalTextType.Vertical;
Step 4: Save the document to file.
ppt.SaveToFile("Result.pptx", FileFormat.Pptx2010);
Effective screenshot after set the vertical alignment and the text direction:
Full codes of vertical align the text and set the text direction.:
using Spire.Presentation;
namespace AlignText
{
class Program
{
static void Main(string[] args)
{
Presentation ppt = new Presentation();
ppt.LoadFromFile("Sample1.pptx", FileFormat.Pptx2010);
ITable table = null;
foreach (IShape shape in ppt.Slides[0].Shapes)
{
if (shape is ITable)
{
table = (ITable)shape;
for (int i = 0; i < table.ColumnsList.Count; i++)
{
table[i, 0].TextAnchorType = TextAnchorType.Center;
table[i, 0].VerticalTextType = VerticalTextType.Vertical270;
table[i, 1].TextAnchorType = TextAnchorType.Center;
table[i, 1].VerticalTextType = VerticalTextType.Horizontal;
table[i, 2].TextAnchorType = TextAnchorType.Center;
table[i, 2].VerticalTextType = VerticalTextType.Vertical;
}
}
}
ppt.SaveToFile("Result.pptx", FileFormat.Pptx2010);
}
}
}
Set and Get Alternative Text (Title and Description) of PowerPoint Shapes in C#
With Spire.Presentation, we can programmatically set the Alternative Text for PowerPoint shapes along with get the Alternative Text of PowerPoint shapes. This article demonstrates how we can use Spire.Presentation to accomplish this function.
Detail steps:
Step 1: Instantiate a Presentation object and load the PowerPoint file.
Presentation ppt = new Presentation();
ppt.LoadFromFile("Input.pptx");
Step 2: Get the first slide.
ISlide slide = ppt.Slides[0];
Step 3: Set or get the alternative text of the first Shape in the slide.
//Set the alternative text (title and description) slide.Shapes[0].AlternativeTitle = "Rectangle"; slide.Shapes[0].AlternativeText = "This is a Rectangle"; //Get the alternative text (title and description) //string title = slide.Shapes[0].AlternativeTitle; //string description = slide.Shapes[0].AlternativeText;
Step 4: Save the file.
ppt.SaveToFile("Output.pptx", FileFormat.Pptx2013);
Screenshot after setting alternative text:
Full code:
using Spire.Presentation;
namespace Set_and_Get_Alternative_Text_of_Shape
{
class Program
{
static void Main(string[] args)
{
//Instantiate a Presentation object
Presentation ppt = new Presentation();
//Load the PowerPoint file
ppt.LoadFromFile("Input.pptx");
//Get the first slide
ISlide slide = ppt.Slides[0];
//Set the alternative text (title and description)
slide.Shapes[0].AlternativeTitle = "Rectangle";
slide.Shapes[0].AlternativeText = "This is a Rectangle";
//Get the alternative text (title and description)
//string title = slide.Shapes[0].AlternativeTitle;
//string description = slide.Shapes[0].AlternativeText;
//Save the file
ppt.SaveToFile("Output.pptx", FileFormat.Pptx2013);
}
}
}
Add text watermark and image watermark to word document in C#
Text watermark and image watermark are two kinds of watermarks in Word document. The text watermark always shows some additional but related information to the word context. While image watermark is used to make the Word document be more attractive. This section will demonstrate how to use Spire.Doc to add text watermark and image watermark to Word document in C#.
Add Image Watermark in C#:
using Spire.Doc;
namespace SetImageWatermark
{
class Program
{
static void Main(string[] args)
{
{
//create a new instance of Document and load the document from file.
Document doc = new Document();
doc.LoadFromFile("Sample.docx", FileFormat.Docx2013);
//create a new instance of the PictureWatermark and load the picture from file.
PictureWatermark picture = new PictureWatermark();
picture.Picture = System.Drawing.Image.FromFile("logo.png");
//set the image watermark scaling and Washout property
picture.Scaling = 20;
picture.IsWashout = false;
//add the picture watermark
doc.Watermark = picture;
//save the document to file
doc.SaveToFile("ImageWatermark.docx", FileFormat.Docx2013);
}
}
}
}
Add Text Watermark in C#::
using Spire.Doc;
using Spire.Doc.Documents;
using System.Drawing;
namespace SetTextWatermark
{
class Program
{
static void Main(string[] args)
{
{
//create a new instance of Document and load the document from file.
Document doc = new Document();
doc.LoadFromFile("Sample.docx", FileFormat.Docx2013);
//create a new instance of the TextWatermark
TextWatermark txtWatermark = new TextWatermark();
//set the text watermark with text string, font, color and layout.
txtWatermark.Text = "Confidential";
txtWatermark.FontSize = 45;
txtWatermark.Color = Color.Green;
txtWatermark.Layout = WatermarkLayout.Diagonal;
//add the text watermark
doc.Watermark = txtWatermark;
//save the file.
doc.SaveToFile("TextWatermark.docx", FileFormat.Docx2013);
}
}
}
}
Conditionally Format Dates in Excel with C#
Microsoft Excel provides 10 date options, ranging from yesterday to next month (see below image) to format selected cells based on the current date. Spire.XLS supports all of these options, in this article, we’re going to show you how to conditionally format dates in Excel using Spire.XLS. If you want to highlight cells based on a date in another cell, or create rules for other dates (i.e., more than a month from the current date), you will have to create your own conditional formatting rule based on a formula.
Detail steps:
Step 1: Initialize an object of Workbook class and load the Excel file.
Workbook workbook = new Workbook();
workbook.LoadFromFile("Input.xlsx");
Step 2: Get the first worksheet.
Worksheet sheet = workbook.Worksheets[0];
Step 3: Add a condition to the used range in the worksheet.
ConditionalFormatWrapper conditionalFormat = sheet.AllocatedRange.ConditionalFormats.AddCondition();
Step 4: Specify the format type of the condition as time period and set the time period as last 7 days.
conditionalFormat.FormatType = ConditionalFormatType.TimePeriod; conditionalFormat.SetTimePeriod(TimePeriodType.Last7Days);
Step 5:Set the highlight color.
conditionalFormat.BackColor = Color.Orange;
Step 6:Save the file.
workbook.SaveToFile("ConditionallyFormatDates.xlsx", ExcelVersion.Version2013);
Screenshot::
Full Code:
using Spire.Xls;
using Spire.Xls.Core.Spreadsheet.ConditionalFormatting;
using System.Drawing;
namespace ConditionallyFormatDates
{
class Program
{
static void Main(string[] args)
{
{
//Initialize an object of Workbook class
Workbook workbook = new Workbook();
//Load the Excel file
workbook.LoadFromFile("Input.xlsx");
//Get the first worksheet
Worksheet sheet = workbook.Worksheets[0];
//Highlight cells that contain a date occurring in the last 7 days
ConditionalFormatWrapper conditionalFormat = sheet.AllocatedRange.ConditionalFormats.AddCondition();
conditionalFormat.FormatType = ConditionalFormatType.TimePeriod;
conditionalFormat.SetTimePeriod(TimePeriodType.Last7Days);
conditionalFormat.BackColor = Color.Orange;
//Save the file
workbook.SaveToFile("ConditionallyFormatDates.xlsx", ExcelVersion.Version2013);
}
}
}
}
Apply Transparency to Text in PowerPoint in C#, VB.NET
It is possible to add text transparency to any text shape in PowerPoint. In order to make the text transparent, we’d need to apply the transparency level to the text shape. This article will show you how to set the transparency level of text using Spire.Presentation.
Step 1: Create a Presentation instance.
Presentation ppt = new Presentation();
Step 2: Add a shape to the first slide.
IAutoShape textboxShape = ppt.Slides[0].Shapes.AppendShape(ShapeType.Rectangle, new RectangleF(50, 70,300, 120)); textboxShape.ShapeStyle.LineColor.Color = Color.Transparent; textboxShape.Fill.FillType = FillFormatType.None;
Step 3: Add text to shape.
textboxShape.TextFrame.Text = "Text Transparency";
Step 4: Set the fill type of TextRange to solid, and fill the TextRange using the color created with specified alpha value.
textboxShape.TextFrame.TextRange.Fill.FillType = FillFormatType.Solid; int alpha = 55; textboxShape.TextFrame.TextRange.Fill.SolidColor.Color = Color.FromArgb(alpha, Color.Purple);
Step 5:Save the file.
ppt.SaveToFile("result.pptx", FileFormat.Pptx2013);
Output:
Full Code:
using Spire.Presentation;
using Spire.Presentation.Drawing;
using System.Drawing;
namespace ApplyTransparency
{
class Program
{
static void Main(string[] args)
{
//create a PowerPoint document
Presentation ppt = new Presentation();
ppt.SlideSize.Type = SlideSizeType.Screen16x9;
//add a shape
IAutoShape textboxShape = ppt.Slides[0].Shapes.AppendShape(ShapeType.Rectangle, new RectangleF(50, 70, 300, 120));
textboxShape.ShapeStyle.LineColor.Color = Color.Transparent;
textboxShape.Fill.FillType = FillFormatType.None;
//remove default blank paragraphs
textboxShape.TextFrame.Paragraphs.Clear();
//add three paragraphs, apply color with different alpha values to text
int alpha = 55;
for (int i = 0; i < 3; i++)
{
textboxShape.TextFrame.Paragraphs.Append(new TextParagraph());
textboxShape.TextFrame.Paragraphs[i].TextRanges.Append(new TextRange("Text Transparency"));
textboxShape.TextFrame.Paragraphs[i].TextRanges[0].Fill.FillType = FillFormatType.Solid;
textboxShape.TextFrame.Paragraphs[i].TextRanges[0].Fill.SolidColor.Color = Color.FromArgb(alpha, Color.Purple);
alpha += 100;
}
//save to file
ppt.SaveToFile("result.pptx", FileFormat.Pptx2013);
}
}
}
Imports Spire.Presentation
Imports Spire.Presentation.Drawing
Imports System.Drawing
Namespace ApplyTransparency
Class Program
Private Shared Sub Main(args As String())
'create a PowerPoint document
Dim ppt As New Presentation()
ppt.SlideSize.Type = SlideSizeType.Screen16x9
'add a shape
Dim textboxShape As IAutoShape = ppt.Slides(0).Shapes.AppendShape(ShapeType.Rectangle, New RectangleF(50, 70, 300, 120))
textboxShape.ShapeStyle.LineColor.Color = Color.Transparent
textboxShape.Fill.FillType = FillFormatType.None
'remove default blank paragraphs
textboxShape.TextFrame.Paragraphs.Clear()
'add three paragraphs, apply color with different alpha values to text
Dim alpha As Integer = 55
For i As Integer = 0 To 2
textboxShape.TextFrame.Paragraphs.Append(New TextParagraph())
textboxShape.TextFrame.Paragraphs(i).TextRanges.Append(New TextRange("Text Transparency"))
textboxShape.TextFrame.Paragraphs(i).TextRanges(0).Fill.FillType = FillFormatType.Solid
textboxShape.TextFrame.Paragraphs(i).TextRanges(0).Fill.SolidColor.Color = Color.FromArgb(alpha, Color.Purple)
alpha += 100
Next
'save to file
ppt.SaveToFile("result.pptx", FileFormat.Pptx2013)
End Sub
End Class
End Namespace
Set text style in word document
using NPOI.XWPF.UserModel;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace NPOI
{
class Program
{
static void Main(string[] args)
{
//Create document
XWPFDocument doc = new XWPFDocument();
//Create paragraph
XWPFParagraph para1 = doc.CreateParagraph();
para1.Alignment = ParagraphAlignment.CENTER;
//Set style of the paragraph text
XWPFRun run1 = para1.CreateRun();
run1.SetColor("Blue");
run1.FontSize = 18;
run1.SetText("This is the first paragraph");
run1.SetBold(true);
XWPFParagraph para2 = doc.CreateParagraph();
para2.Alignment = ParagraphAlignment.LEFT;
para2.BorderTop = Borders.WAVE;
XWPFRun run2 = para2.CreateRun();
run2.Subscript = VerticalAlign.BASELINE;
run2.SetColor("Red");
run2.IsItalic = true;
run2.SetUnderline(UnderlinePatterns.Dash);
run2.SetText("This is the second paragraph");
//Save the file
using (FileStream file = File.Create("TextStyle.docx"))
{
doc.Write(file);
}
//Launch
System.Diagnostics.Process.Start("TextStyle.docx");
}
}
}