Wednesday, 20 November 2019 07:45

Replace Text with Image in Word in Java

This article demonstrates how to replace selected text in a Word document with an image using Spire.Doc for Java.

import com.spire.doc.Document;
import com.spire.doc.FileFormat;
import com.spire.doc.documents.TextSelection;
import com.spire.doc.fields.DocPicture;
import com.spire.doc.fields.TextRange;

public class ReplaceTextWithImage {

    public static void main(String[] args) {

        //Load a sample Word file
        Document document = new Document();
        document.loadFromFile("C:\\Users\\Administrator\\Desktop\\input.docx");

        //Find the string 'E-iceblue' in the document
        TextSelection[] selections = document.findAllString("E-iceblue", true, true);

        //Replace the string with an image
        int index = 0;
        TextRange range = null;
        for (Object obj : selections) {

            TextSelection textSelection = (TextSelection)obj;
            DocPicture pic = new DocPicture(document);
            pic.loadImage("C:\\Users\\Administrator\\Desktop\\e-iceblue-logo.png");
            range = textSelection.getAsOneRange();
            index = range.getOwnerParagraph().getChildObjects().indexOf(range);
            range.getOwnerParagraph().getChildObjects().insert(index,pic);
            range.getOwnerParagraph().getChildObjects().remove(range);
        }

        //Save the document
        document.saveToFile("output/ReplaceTextWithImage.docx", FileFormat.Docx_2013);
    }
}

Replace Text with Image in Word in Java

Wednesday, 20 November 2019 03:34

Add Trendline to Chart in PowerPoint in Java

A trendline is a line superimposed on a chart revealing the overall direction of the data. Spire.Presentation for Java supports adding six different types of trendlines to chart, i.e. linear, logarithmic, polynomial, power, exponential and moving average.

The below example demonstrates how to use Spire.Presentation for Java to add a linear trendline to a chart.

import com.spire.presentation.FileFormat;
import com.spire.presentation.ISlide;
import com.spire.presentation.Presentation;
import com.spire.presentation.charts.IChart;
import com.spire.presentation.charts.ITrendlines;
import com.spire.presentation.charts.TrendlineSimpleType;

public class AddTrendlineToChart {
    public static void main(String[] args) throws Exception {
        //create a Presentation instance
        Presentation ppt = new Presentation();
        //load the PowerPoint document
        ppt.loadFromFile("Chart.pptx");

        //get the first slide
        ISlide slide = ppt.getSlides().get(0);
        //get the chart on the slide
        IChart chart = (IChart)slide.getShapes().get(0);

        //add a linear trendline to the first series of the chart
        ITrendlines trendLine = chart.getSeries().get(0).addTrendLine(TrendlineSimpleType.LINEAR);
        //display equation
        trendLine.setdisplayEquation(true);

        //save the resultant document
        ppt.saveToFile("AddTrendline.pptx", FileFormat.PPTX_2013);
    }
}

Output:

Add Trendline to Chart in PowerPoint in Java

Mark as Final means that the presentation slide is final edition and the author doesn’t want any changes on the document. With Spire.Presentation for Java, we can protect the presentation slides by setting the password. This article demonstrates how to mark a presentation as final by setting the document property MarkAsFinal as true.

import com.spire.presentation.FileFormat;
import com.spire.presentation.Presentation;

public class MarkAsFinal {
    public static void main(String[] args) throws Exception {

        //Create a PPT document and load file
        Presentation presentation = new Presentation();
        presentation.loadFromFile("Sample.pptx");
       
        //Set the document property MarkAsFinal as true
        presentation.getDocumentProperty().set("_MarkAsFinal", true);

        //Save the document to file
        presentation.saveToFile("output/MarkasFinal.pptx", FileFormat.PPTX_2010);
    }
}

Effective screenshot after mark as final for presentation:

Java protect presentation slides by setting the property with mark as final

This article demonstrates how to add or delete rows and columns in a PowerPoint table using Spire.Presentation for Java.

Here is a screenshot of the sample PowerPoint file:

Add or Delete Rows and Columns from PowerPoint Table in Java

Add a row and a column

import com.spire.presentation.*;

public class AddRowAndColumn {

    public static void main(String[] args) throws Exception {

        //load the sample PowerPoint file
        Presentation presentation = new Presentation();
        presentation.loadFromFile("C:\\Users\\Administrator\\Desktop\\input.pptx");

        //get the table in the document
        ITable table = null;
        for (Object shape : presentation.getSlides().get(0).getShapes()) {
            if (shape instanceof ITable) {
                table = (ITable) shape;

                //add the last row to the end of the table as a new row
                int rowCount = table.getTableRows().getCount();
                TableRow row = table.getTableRows().get(rowCount - 1);
                table.getTableRows().append(row);

                //get the new row and set the text for each cell
                rowCount = table.getTableRows().getCount();
                row = table.getTableRows().get(rowCount - 1);
                row.get(0).getTextFrame().setText("America");
                row.get(1).getTextFrame().setText("Washington");
                row.get(2).getTextFrame().setText("North America");
                row.get(3).getTextFrame().setText("9372610");

                //add the last column to the end of the table as a new column
                int colCount = table.getColumnsList().getCount();
                TableColumn column =table.getColumnsList().get(colCount-1);
                table.getColumnsList().add(column);

                //get the new column and set the text for each cell
                colCount = table.getColumnsList().getCount();
                column = table.getColumnsList().get(colCount-1);
                column.get(0).getTextFrame().setText("Population");
                column.get(1).getTextFrame().setText("32370000");
                column.get(2).getTextFrame().setText("7350000");
                column.get(3).getTextFrame().setText("15040000");
                column.get(4).getTextFrame().setText("26500000");
                column.get(5).getTextFrame().setText("329740000");
            }
        }
        
        //save the document
        presentation.saveToFile("output/AddRowAndColumn.pptx", FileFormat.PPTX_2013);
    }
}

Add or Delete Rows and Columns from PowerPoint Table in Java

Delete a row and a column

import com.spire.presentation.FileFormat;
import com.spire.presentation.ITable;
import com.spire.presentation.Presentation;

public class DeleteRowAndColumn {

    public static void main(String[] args) throws Exception {

        //load the sample PowerPoint file
        Presentation presentation = new Presentation();
        presentation.loadFromFile("C:\\Users\\Administrator\\Desktop\\input.pptx");

        //get the table in the document
        ITable table = null;
        for (Object shape : presentation.getSlides().get(0).getShapes()) {
            if (shape instanceof ITable) {
                table = (ITable) shape;
                
                //delete the second column
                table.getColumnsList().removeAt(1, false);
                
                //delete the second row
                table.getTableRows().removeAt(1, false);
            }
        }
        
        //save the document
        presentation.saveToFile("output/DeleteRowAndColumn.pptx", FileFormat.PPTX_2013);
    }
}

Add or Delete Rows and Columns from PowerPoint Table in Java

Tuesday, 12 November 2019 05:56

Modify Hyperlinks in Word in Java

This article demonstrates how to modify hyperlinks in Word including modifying hyperlink address and display text using Spire.Doc for Java.

Below is the sample Word document we used for demonstration:

Modify Hyperlinks in Word in Java

import com.spire.doc.*;
import com.spire.doc.documents.*;
import com.spire.doc.fields.Field;

import java.util.ArrayList;
import java.util.List;

public class ModifyHyperlink {
    public static void main(String[] args) {
        //Load Word document
        Document doc = new Document();
        doc.loadFromFile("Hyperlink.docx");

        List hyperlinks = new ArrayList();

        //Loop through the section in the document
        for (Section section : (Iterable<Section>) doc.getSections()
                ) {
            //Loop through the section in the document
            for (Paragraph para : (Iterable<Paragraph>) section.getParagraphs()
                    ) {
                for (DocumentObject obj:(Iterable<DocumentObject>) para.getChildObjects()
                     ) {
                    if (obj.getDocumentObjectType().equals(DocumentObjectType.Field)) {
                        Field field = (Field) obj;
                        if (field.getType().equals(FieldType.Field_Hyperlink)) {
                            hyperlinks.add(field);
                        }
                    }
                }
            }
        }

        hyperlinks.get(0).setCode("HYPERLINK \"http://www.google.com\"");
        hyperlinks.get(0).setFieldText("www.google.com");

        doc.saveToFile("EditHyperlink.docx", FileFormat.Docx_2013);
    }
}

Output:

Modify Hyperlinks in Word in Java

Monday, 11 November 2019 07:31

Remove footnote from Word document in Java

We have already demonstrated how to use Spire.Doc to insert footnote to word document in Java applications. This article will show how to remove footnote from word document in Java.

Firstly, view the sample document with footnotes:

Remove footnote from Word document in Java

import com.spire.doc.*;
import com.spire.doc.documents.Paragraph;
import com.spire.doc.fields.*;

public class RemoveFootnote {
    public static void main(String[] args) throws Exception {

        //Load the Sample Word document.
        Document document = new Document();
        document.loadFromFile("Sample.docx");

        Section section = document.getSections().get(0);

        //Traverse paragraphs in the section and find the footnote
        for (int j = 0; j < section.getParagraphs().getCount(); j++) {
            Paragraph para = section.getParagraphs().get(j);
            int index = -1;
            for (int i = 0, cnt = para.getChildObjects().getCount(); i < cnt; i++) {
                ParagraphBase pBase = (ParagraphBase) para.getChildObjects().get(i);
                if (pBase instanceof Footnote) {
                    index = i;
                    break;
                }
            }

            if (index > -1)
                //remove the footnote
                para.getChildObjects().removeAt(index);
        }
        document.saveToFile("Removefootnote.docx", FileFormat.Docx);
    }
}

Effective screenshot after remove the footnote from word document:

Remove footnote from Word document in Java

Friday, 08 November 2019 01:57

Apply Background Image to Slides in Java

This article demonstrates how to apply background image to all slides in a PowerPoint presentation using Spire.Presentation for Java.

import com.spire.presentation.FileFormat;
import com.spire.presentation.Presentation;
import com.spire.presentation.SlideBackground;
import com.spire.presentation.drawing.*;

import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;
import java.io.FileInputStream;

public class AppplyBgToAllSlides {

    public static void main(String[] args) throws Exception {

        //load a PowerPoint file
        Presentation presentation = new Presentation();
        presentation.loadFromFile("C:\\Users\\Administrator\\Desktop\\input.pptx");

        //get the image data
        BufferedImage bufferedImage = ImageIO.read(new FileInputStream("C:\\Users\\Administrator\\Desktop\\bg.jpg"));
        IImageData imageData = presentation.getImages().append(bufferedImage);

        //loop through the slides
        for (int i = 0; i < presentation.getSlides().getCount() ; i++) {

            //apply the image to the specific slide as background
            SlideBackground background = presentation.getSlides().get(i).getSlideBackground();
            background.setType(BackgroundType.CUSTOM);
            background.getFill().setFillType(FillFormatType.PICTURE);
            background.getFill().getPictureFill().setFillType(PictureFillType.STRETCH);
            background.getFill().getPictureFill().getPicture().setEmbedImage(imageData);
        }

        //save the file
        presentation.saveToFile("output/BackgroundImage.pptx", FileFormat.PPTX_2013);
        presentation.dispose();
    }
}

Apply Background Image to Slides in Java

Tuesday, 05 November 2019 09:15

Detect and remove Word Macros in Java

Spire.Doc load the word document with macros, it also supports to detect if a Word document contains VBA macros and remove all the VBA macros from a word document. This article demonstrates how to detect and remove VBA macros from Word document in Java applications.

Firstly, please view the sample document with macros:

Detect and remove Word Macros in Java

import com.spire.doc.Document;
import com.spire.doc.FileFormat;


public class RemoveMacro {
    public static void main(String[] args) throws Exception {

        //Load the Sample Word document.
        Document doc = new Document();
        doc.loadFromFile("VBAMacros.docm");

        //If the document contains Macros, remove them from the document.
        if (doc.isContainMacro() )
        {
            doc.clearMacros();
        }

        //save to file
        doc.saveToFile("output/RemoveMacro.docm", FileFormat.Docm);

    }
}

Effective screenshot after clear the VBA macros from word document:

Detect and remove Word Macros in Java

Friday, 01 November 2019 09:12

Replace Image with New Image in Word in Java

This article demonstrates how to replace an existing image in a Word document with a new image using Spire.Doc for Java.

Below is the screenshot of the original Word document before replacing image:

Replace Image with New Image in Word in Java

import com.spire.doc.Document;
import com.spire.doc.DocumentObject;
import com.spire.doc.FileFormat;
import com.spire.doc.Section;
import com.spire.doc.documents.Paragraph;
import com.spire.doc.fields.DocPicture;

public class ReplaceImages {
    public static void main(String[] args){
        //Load the Word document
        Document doc = new Document();
        doc.loadFromFile("Images.docx");

        //Get the first section
        Section section = doc.getSections().get(0);

        //Loop through the paragraphs in the section
        for (Paragraph para:(Iterable) section.getParagraphs()
             ) {
            //Loop through the child object in the paragraph
            for (DocumentObject obj:(Iterable) para.getChildObjects()
                 ) {
                //Replace image with new image
                if(obj instanceof DocPicture){
                    DocPicture pic = (DocPicture)obj;
                    pic.loadImage("Hydrangeas.jpg");
                }
            }
        }

        //Save the resultant document
        doc.saveToFile("ReplaceWithImage.docx", FileFormat.Docx_2013);
    }
}

Output:

Replace Image with New Image in Word in Java

Step 1: Download the latest version of Spire.PDF Pack from the link below, unzip it, and you'll get the DLL files for .NET Standarad from the "netstandard2.0" folder. If you already have this folder in your disk, go straight to step two.

How to Mannually Add Spire.PDF as Dependency in a .NET Standard Library Project

Step 2: Create a .NET Standard library project in your Visual Studio.

How to Mannually Add Spire.PDF as Dependency in a .NET Standard Library Project

Step 3: Add all DLL files under the "netstandard2.0" folder as dependencies in your project.

Right-click "Dependencies" – select "Add Reference" – click "Browse" – selcet all DLLs under "netstandard2.0" folder – click "Add".

How to Mannually Add Spire.PDF as Dependency in a .NET Standard Library Project

Step 4: Install the other five packages in your project via the NuGet Package Manager. They are SkiaSharp, System.Buffers, System.Memory, System.Text.Encoding.CodePages and System.Runtime.CompilerServices.Unsafe.

Right-click "Dependencies" – select "Manage NuGet Packages" – click "Browse" –type the package name – select the package from the search results – click "Install".

How to Mannually Add Spire.PDF as Dependency in a .NET Standard Library Project

Step 5: Now that you've added all the dependences successfully, you can start to write your own .NET Standard library that is capable of creating and processing PDF documents.

using Spire.Pdf;
using Spire.Pdf.Graphics;
using System.Drawing;

namespace SpirePdfStandard
{
    public class Class1
    {
        public void CreatePdf()
        {
            //Create a PdfDocument object
            PdfDocument doc = new PdfDocument();

            //Add a page
            PdfPageBase page = doc.Pages.Add();

            //Draw text on the page at the specified position
            page.Canvas.DrawString("Hello World",
                                    new PdfFont(PdfFontFamily.Helvetica, 13f),
                                    new PdfSolidBrush(Color.Black),
                                    new PointF(50, 50));

            //Save the document
            doc.SaveToFile("Output.pdf");
        }

    }
}
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