Create a Multi-Level List in PDF in Java
This article shows you how to create a multi-level list in a PDF document using Spire.PDF for Java.
import com.spire.pdf.PdfDocument; import com.spire.pdf.PdfNumberStyle; import com.spire.pdf.PdfPageBase; import com.spire.pdf.PdfPageSize; import com.spire.pdf.graphics.*; import com.spire.pdf.lists.PdfListItem; import com.spire.pdf.lists.PdfOrderedMarker; import com.spire.pdf.lists.PdfSortedList; import java.awt.*; import java.awt.geom.Point2D; public class CreateMultiLevelList { public static void main(String[] args) { //Create a PdfDocument object PdfDocument doc = new PdfDocument(); //Set the margin PdfMargins margin = new PdfMargins(60, 60, 40, 40); //Create one page PdfPageBase page = doc.getPages().add(PdfPageSize.A4, margin); //Specify the initial coordinate float x = 0; float y = 15; //Create two brushed PdfBrush blackBrush = PdfBrushes.getBlack(); PdfBrush purpleBrush = PdfBrushes.getPurple(); //Create two fonts PdfTrueTypeFont titleFont = new PdfTrueTypeFont(new java.awt.Font("Times New Roman", Font.BOLD, 12)); PdfTrueTypeFont listFont = new PdfTrueTypeFont(new java.awt.Font("Calibri Light", Font.PLAIN, 12)); //Draw title String title = "XHTML Tutorials/FAQs:"; page.getCanvas().drawString(title, titleFont, blackBrush, x, y); y = y + (float) titleFont.measureString(title).getHeight(); y = y + 5; //Create two ordered makers, which are used to define the number style of sorted list PdfOrderedMarker marker1 = new PdfOrderedMarker(PdfNumberStyle.Upper_Roman, listFont); PdfOrderedMarker marker2 = new PdfOrderedMarker(PdfNumberStyle.Numeric, listFont); //Create a parent list String parentListContent = "Introduction To XHTML 1.0\n" + "Introduction To Tag and Attribute Syntax"; PdfSortedList parentList = new PdfSortedList(parentListContent); parentList.setFont(listFont); parentList.setIndent(8); parentList.setBrush(purpleBrush); parentList.setMarker(marker1); //Create a sub list - "subList_1" String subListContent_1 = "What Is XHTML?\n" + "What Does an XHMTL Document Look Like?\n" + "What Is the Relation between XHTML and HTML?\n" + "What Is the Relation between XHTML and XML?"; PdfSortedList subList_1 = new PdfSortedList(subListContent_1); subList_1.setIndent(16); subList_1.setFont(listFont); subList_1.setBrush(purpleBrush); subList_1.setMarker(marker2); //Create another sub list -"subList_2" String subListContent_2 = "What Is an XHTML Element?\n" + "How To Enter Comments into XHTML Documents?\n" + "How To Write the Opening Tag of an XHTML Element?"; PdfSortedList subList_2 = new PdfSortedList(subListContent_2); subList_2.setIndent(16); subList_2.setFont(listFont); subList_2.setBrush(purpleBrush); subList_2.setMarker(marker2); //Set subList_1 as sub list of the first item of parent list PdfListItem item_1 = parentList.getItems().get(0); item_1.setSubList(subList_1); //Set subList_2 as sub list of the second item of parent list PdfListItem item_2 = parentList.getItems().get(1); item_2.setSubList(subList_2); //Draw parent list PdfTextLayout textLayout = new PdfTextLayout(); textLayout.setBreak(PdfLayoutBreakType.Fit_Page); textLayout.setLayout(PdfLayoutType.Paginate); parentList.draw(page,new Point2D.Float(x,y),textLayout); //Save to file doc.saveToFile("MultiLevelList.pdf"); } }
Java set the character spacing and paragraph spacing on Word document
This article will show you how to use Spire.Doc for Java to set the character spacing and paragraph spacing on Word.
import com.spire.doc.*; import com.spire.doc.documents.Paragraph; import com.spire.doc.fields.TextRange; import java.awt.*; import java.io.*; public class setSpacing { public static void main(String[] args)throws IOException { //Load the sample document Document document= new Document("Sample1.docx"); //Add a new paragraph and append the text Paragraph para = new Paragraph(document); TextRange textRange1 = para.appendText("Newly added paragraph and set the paragraph spacing and character spacing"); textRange1.getCharacterFormat().setTextColor(Color.blue); textRange1.getCharacterFormat().setFontSize(14); //Set the spacing before and after paragraph para.getFormat().setBeforeAutoSpacing(false); para.getFormat().setBeforeSpacing(10); para.getFormat().setAfterAutoSpacing(false); para.getFormat().setAfterSpacing(10); //Set the character spacing for (DocumentObject object :(Iterable<DocumentObject>)para.getChildObjects()) { TextRange textRange= (TextRange) object; textRange.getCharacterFormat().setCharacterSpacing(3f); } //Insert the paragraph document.getSections().get(0).getParagraphs().insert(2, para); //Save the document to file document.saveToFile("Result.docx", FileFormat.Docx); } }
Output:
C#/VB.NET: Add or Remove Digital Signatures in PowerPoint
A digital signature is a modern alternative to signing documents manually on paper with pen. It uses an advanced mathematical technique to check the authenticity and integrity of digital documents, which guarantees that the contents in a digital document comes from the signer and has not been altered since then. Sometimes PowerPoint documents that contain confidential information may require a signature. In this article, you will learn how to programmatically add or remove digital signatures in PowerPoint using Spire.Presentation for .NET.
- Add a Digital Signature to PowerPoint in C# and VB.NET
- Remove All Digital Signatures from PowerPoint in C# and VB.NET
Install Spire.Presentation for .NET
To begin with, you need to add the DLL files included in the Spire.Presentation 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.Presentation
Add a Digital Signature to PowerPoint in C# and VB.NET
To add a digital signature, you'll need to have a valid signature certificate first. Then you can digitally sign a PowerPoint document with the certificate using Presentation.AddDigitalSignature (X509Certificate2 certificate, string comments, DateTime signTime) method. The detailed steps are as follows.
- Create a Presentation instance.
- Load a sample PowerPoint document using Presentation.LoadFromFile() method.
- Initializes an instance of X509Certificate2 class with the certificate file name and password.
- Add a digital signature to the PowerPoint document using Presentation.AddDigitalSignature (X509Certificate2 certificate, string comments, DateTime signTime) method.
- Save result document using Presentation.SaveToFile() method.
- C#
- VB.NET
using Spire.Presentation; using System; using System.Security.Cryptography.X509Certificates; namespace AddDigitalSignature { class Program { static void Main(string[] args) { //Create a Presentation instance Presentation ppt = new Presentation(); //Load a PowerPoint document ppt.LoadFromFile("input.pptx"); //Load the certificate X509Certificate2 x509 = new X509Certificate2("gary.pfx", "e-iceblue"); //Add a digital signature ppt.AddDigitalSignature(x509, "e-iceblue", DateTime.Now); //Save the result document ppt.SaveToFile("AddDigitalSignature.pptx", FileFormat.Pptx2013); } } }
Remove All Digital Signatures from PowerPoint in C# and VB.NET
At some point you may need to remove the digital signatures from a PowerPoint document. Spire.Presentation for .NET provides the Presentation.RemoveAllDigitalSignatures() method to remove all digital signatures at once. The detailed steps are as follows:
- Create a Presentation instance.
- Load a sample PowerPoint document using Presentation.LoadFromFile() method.
- Determine if the document contains digital signatures using Presentation.IsDigitallySigned property.
- Remove all digital signatures from the document using Presentation.RemoveAllDigitalSignatures() method.
- Save the result document using Presentation.SaveToFile() method.
- C#
- VB.NET
using Spire.Presentation; namespace RemoveDigitalSignature { class Program { static void Main(string[] args) { //Create a Presentation instance Presentation ppt = new Presentation(); //Load a PowerPoint document ppt.LoadFromFile("AddDigitalSignature.pptx"); //Detect if the document is digitally signed if (ppt.IsDigitallySigned == true) { //Remove all digital signatures ppt.RemoveAllDigitalSignatures(); } //Save the result document ppt.SaveToFile("RemoveDigitalSignature.pptx", FileFormat.Pptx2013); } } }
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Add image comment to Excel in Java
We have demonstrated how to add and read text comments in Excel in Java applications. This article will show you how to insert image comment to Excel with Spire.XLS for Java.
import com.spire.xls.*; import javax.imageio.ImageIO; import java.awt.image.BufferedImage; import java.io.*; public class Test { public static void main(String[] args)throws IOException { //Load the sample Excel file Workbook workbook = new Workbook(); workbook.loadFromFile("Sample.xlsx"); //Get the first worksheet Worksheet sheet = workbook.getWorksheets().get(0); //set the font ExcelFont font = workbook.createFont(); font.setFontName("Arial"); font.setSize(11); font.setKnownColor(ExcelColors.Orange); CellRange range = sheet.getCellRange("D1"); //Add the commet ExcelComment comment = range.addComment(); //Load the image BufferedImage bufferedImage = ImageIO.read(new File("Logo.jpg")); //Use the image to fill the comment comment.getFill().customPicture(bufferedImage, "Logo.jpg"); //Set the height and width for the comment comment.setHeight(bufferedImage.getHeight()); comment.setWidth(bufferedImage.getWidth()); //Show the comment comment.setVisible(true); //Save the document to file workbook.saveToFile("output/setimageComment.xlsx", ExcelVersion.Version2013); } }
Output:
Download PDF Document from URL in C#/VB.NET
This article shows you how to download a PDF document from an URL using Spire.PDF with C# and VB.NET.
using System.IO; using System.Net; using Spire.Pdf; namespace DownloadPdfFromUrl { class Program { static void Main(string[] args) { //Create a PdfDocument object PdfDocument doc = new PdfDocument(); //Create a WebClient object WebClient webClient = new WebClient(); //Download data from URL and save as memory stream using (MemoryStream ms = new MemoryStream(webClient.DownloadData("https://www.e-iceblue.com/article/toDownload.pdf"))) { //Load the stream doc.LoadFromStream(ms); } //Save to PDF file doc.SaveToFile("result.pdf", FileFormat.PDF); } } }
Imports System.IO Imports System.Net Imports Spire.Pdf Namespace DownloadPdfFromUrl Class Program Shared Sub Main(ByVal args() As String) 'Create a PdfDocument object Dim doc As PdfDocument = New PdfDocument() 'Create a WebClient object Dim webClient As WebClient = New WebClient() 'Download data from URL and save as memory stream Imports(MemoryStream ms = New MemoryStream(webClient.DownloadData("https:'www.e-iceblue.com/article/toDownload.pdf"))) { 'Load the stream doc.LoadFromStream(ms) } 'Save to PDF file doc.SaveToFile("result.pdf", FileFormat.PDF) End Sub End Class End Namespace
Java replace the text with image in Excel worksheet
This article will show you how to replace the searched text with image in Excel worksheet by using Spire.XLS in Java applications.
Sample Excel:
import com.spire.xls.*; import java.io.IOException; public class replaceTextwithImage { public static void main(String[] args) throws IOException { //Load the sample Excel document Workbook workbook = new Workbook(); workbook.loadFromFile("Sample.xlsx"); //Get the first worksheet Worksheet worksheet = workbook.getWorksheets().get(0); //Find the text string {{Image}} CellRange[] ranges = worksheet.findAllString("{{Image}}", false, false); for (CellRange range : ranges) { //set the text as null range.setText(""); //get the row and column of the searched range int row = range.getRow(); int column = range.getColumn(); //Add the image to the searched range worksheet.getPictures().add(row, column, "logo.jpg", ImageFormatType.Jpeg); //Save the document to file workbook.saveToFile("replaceTextwithImage.xlsx", ExcelVersion.Version2013); } } }
Output:
Link to a Bookmark in a Word Document in C#/VB.NET
This article shows you how to create a hyperlink to a bookmark within the same Word document by using Spire.Doc with C# and VB.NET.
using Spire.Doc; using Spire.Doc.Documents; namespace LinkToBookmark { class Program { static void Main(string[] args) { //Create a Document object Document doc = new Document(); //Add two sections Section section1 = doc.AddSection(); Section section2 = doc.AddSection(); //Insert a paragraph in section 2 and add a bookmark named "myBookmark" to it Paragraph bookmarkParagrapg = section2.AddParagraph(); bookmarkParagrapg.AppendText("Here is a bookmark"); BookmarkStart start = bookmarkParagrapg.AppendBookmarkStart("myBookmark"); bookmarkParagrapg.Items.Insert(0, start); bookmarkParagrapg.AppendBookmarkEnd("myBookmark"); //Link to the bookmark Paragraph paragraph = section1.AddParagraph(); paragraph.AppendText("Link to a bookmark: "); paragraph.AppendHyperlink("myBookmark", "Jump to a location in this document", HyperlinkType.Bookmark); //Save to file doc.SaveToFile("LinkToBookmark.docx", FileFormat.Docx2013); } } }
Imports Spire.Doc Imports Spire.Doc.Documents Namespace LinkToBookmark Class Program Shared Sub Main(ByVal args() As String) 'Create a Document object Document doc = New Document() 'Add two sections Dim section1 As Section = doc.AddSection() Dim section2 As Section = doc.AddSection() 'Insert a paragraph in section 2 and add a bookmark named "myBookmark" to it Dim bookmarkParagrapg As Paragraph = section2.AddParagraph() bookmarkParagrapg.AppendText("Here is a bookmark") Dim start As BookmarkStart = bookmarkParagrapg.AppendBookmarkStart("myBookmark") bookmarkParagrapg.Items.Insert(0, start) bookmarkParagrapg.AppendBookmarkEnd("myBookmark") 'Link to the bookmark Dim paragraph As Paragraph = section1.AddParagraph() paragraph.AppendText("Link to a bookmark: ") paragraph.AppendHyperlink("myBookmark", "Jump to a location in this document", HyperlinkType.Bookmark) 'Save to file doc.SaveToFile("LinkToBookmark.docx", FileFormat.Docx2013) End Sub End Class End Namespace
Insert OLE Object in Excel in Java applications
Spire.XLS for Java supports to insert Word, Excel, PowerPoint slide and PDF as linked object or embedded object into Excel Worksheet. This article will show you how to insert a Word document as an embedded object into Excel by using Spire.XLS for Java in Java applications.
import com.spire.xls.*; import com.spire.xls.core.IOleObject; import com.spire.doc.*; import com.spire.doc.documents.ImageType; import java.awt.image.BufferedImage; public class insertOLEObjects { public static void main(String[] args) { String docFile = "Sample.docx"; String outputFile = "output/insertOLEObjects_result.xlsx"; //Load the Excel document Workbook workbook = new Workbook(); workbook.loadFromFile("Sample.xlsx"); //Get the first worksheet Worksheet worksheet = workbook.getWorksheets().get(0); //Generate image BufferedImage image = GenerateImage(docFile); //insert OLE object IOleObject oleObject = worksheet.getOleObjects().add(docFile, image, OleLinkType.Embed); oleObject.setLocation(worksheet.getCellRange("B4")); oleObject.setObjectType(OleObjectType.ExcelWorksheet); //Save the file workbook.saveToFile(outputFile, ExcelVersion.Version2010); } private static BufferedImage GenerateImage(String fileName) { //Load the sample word document Document document = new Document(); document.loadFromFile(fileName); //Save the first page of word as an image BufferedImage image = document.saveToImages(0, ImageType.Bitmap); return image; } }
Output:
Set ASCII Characters as Bullet Points in Word in Java
This article shows you how to set ASCII characters (special symbols) as bullet points in Word documents using Spire.Doc for Java.
import com.spire.doc.Document; import com.spire.doc.FileFormat; import com.spire.doc.Section; import com.spire.doc.documents.ListStyle; import com.spire.doc.documents.ListType; import com.spire.doc.documents.Paragraph; public class SetBulletPoints { public static void main(String[] args) { //Create a Document object and add a section Document doc = new Document(); Section section = doc.addSection(); //Create four list styles based on different ASCII characters ListStyle listStyle1 = new ListStyle(doc, ListType.Bulleted); listStyle1.getLevels().get(0).setBulletCharacter("\u006e"); listStyle1.getLevels().get(0).getCharacterFormat().setFontName("Wingdings"); listStyle1.setName("liststyle1"); doc.getListStyles().add(listStyle1); ListStyle listStyle2 = new ListStyle(doc, ListType.Bulleted); listStyle2.getLevels().get(0).setBulletCharacter("\u0075"); listStyle2.getLevels().get(0).getCharacterFormat().setFontName("Wingdings"); listStyle2.setName("liststyle2"); doc.getListStyles().add(listStyle2); ListStyle listStyle3 = new ListStyle(doc, ListType.Bulleted); listStyle3.getLevels().get(0).setBulletCharacter("\u00b2"); listStyle3.getLevels().get(0).getCharacterFormat().setFontName("Wingdings"); listStyle3.setName("liststyle3"); doc.getListStyles().add(listStyle3); ListStyle listStyle4 = new ListStyle(doc, ListType.Bulleted); listStyle4 .getLevels().get(0).setBulletCharacter("\u00d8"); listStyle4 .getLevels().get(0).getCharacterFormat().setFontName("Wingdings"); listStyle4.setName("liststyle4"); doc.getListStyles().add(listStyle4); //Add four paragraphs and apply list style separately Paragraph p1 = section.getBody().addParagraph(); p1.appendText("Spire.Doc for .NET"); p1.getListFormat().applyStyle(listStyle1.getName()); Paragraph p2 = section.getBody().addParagraph(); p2.appendText("Spire.PDF for .NET"); p2.getListFormat().applyStyle(listStyle2.getName()); Paragraph p3 = section.getBody().addParagraph(); p3.appendText("Spire.XLS for .NET"); p3.getListFormat().applyStyle(listStyle3.getName()); Paragraph p4= section.getBody().addParagraph(); p4.appendText("Spire.Presentation for .NET"); p4.getListFormat().applyStyle(listStyle4.getName()); //Save to file doc.saveToFile("SetBulletCharacter.docx", FileFormat.Docx); } }
Add an Endnote to Word in Java
This article shows you how to add an endnote to Word documents using Spire.Doc for Java.
import com.spire.doc.*; import com.spire.doc.documents.Paragraph; import com.spire.doc.fields.Footnote; import com.spire.doc.fields.TextRange; import java.awt.*; public class AddEndnote { public static void main(String[] args) { //Create a Document object Document doc = new Document(); //Load the sample Word file doc.loadFromFile("C:\\Users\\Administrator\\Desktop\\sample.docx"); //Get the first section Section section = doc.getSections().get(0); //Get the specific paragraph to add endnote Paragraph paragraph = section.getParagraphs().get(2); //Add an endnote Footnote endnote = paragraph.appendFootnote(FootnoteType.Endnote); //Set endnote text TextRange textRange = endnote.getTextBody().addParagraph().appendText("This is an endnote created by Spire.Doc."); //Set text format of endnote textRange.getCharacterFormat().setFontName("Arial"); textRange.getCharacterFormat().setFontSize(13f); textRange.getCharacterFormat().setTextColor(Color.RED); //Save to file doc.saveToFile("AddEndnote.docx", FileFormat.Docx_2013); } }