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Merge Selected Pages from Multiple PDF Files into One in C#/VB.NET
2014-09-02 09:25:30 Written by KoohjiUsing Spire.PDF, you can not only merge multiple PDF files into a single file, but also select specific pages from the source files and combine them in one PDF document. The following code snippets demonstrate the same.
Step 1: Get the PDF file paths and store in a string array.
string[] files = { "Sample1.pdf", "Sample2.pdf", "Sample3.pdf" };
Step 2: Load each PDF document to an object of PdfDocument and store all these objects in PdfDocument array.
PdfDocument[] docs = new PdfDocument[files.Length];
for (int i = 0; i < files.Length; i++)
{
docs[i] = new PdfDocument(files[i]);
}
Step 3: Create an instance of PdfDocument class.
PdfDocument doc = new PdfDocument();
Step 4: Call InsertPage(PdfDocument doc, int pageIndex) method and InertPageRange(PdfDocument doc, int startIndex, int endIndex) method to insert selected pages to the new PDF document.
doc.InsertPage(docs[0], 0);
doc.InsertPage(docs[1], 1);
doc.InsertPageRange(docs[2], 2, 5);
Step 5: Save and launch the file.
doc.SaveToFile("Result.pdf");
Process.Start("Result.pdf");
Screen Shot of Effect:
The six pages in the result file are extracted from three sample PDF files.
Full Code:
using Spire.Pdf;
using System.Diagnostics;
namespace MergeSelectedPages
{
class Program
{
static void Main(string[] args)
{
string[] files = { "Sample1.pdf", "Sample2.pdf", "Sample3.pdf" };
PdfDocument[] docs = new PdfDocument[files.Length];
//open pdf documents
for (int i = 0; i < files.Length; i++)
{
docs[i] = new PdfDocument(files[i]);
}
//create a new pdf document and insert selected pages
PdfDocument doc = new PdfDocument();
doc.InsertPage(docs[0], 0);
doc.InsertPage(docs[1], 1);
doc.InsertPageRange(docs[2], 2, 5);
doc.SaveToFile("Result.pdf");
Process.Start("Result.pdf");
}
}
}
Imports Spire.Pdf
Imports System.Diagnostics
Namespace MergeSelectedPages
Class Program
Private Shared Sub Main(args As String())
Dim files As String() = {"Sample1.pdf", "Sample2.pdf", "Sample3.pdf"}
Dim docs As PdfDocument() = New PdfDocument(files.Length - 1) {}
'open pdf documents
For i As Integer = 0 To files.Length - 1
docs(i) = New PdfDocument(files(i))
Next
'create a new pdf document and insert selected pages
Dim doc As New PdfDocument()
doc.InsertPage(docs(0), 0)
doc.InsertPage(docs(1), 1)
doc.InsertPageRange(docs(2), 2, 5)
doc.SaveToFile("Result.pdf")
Process.Start("Result.pdf")
End Sub
End Class
End Namespace
Spire.Doc supports to insert page breaks in C# and VB.NET. We have already had a tutorial article of how to insert a page break after a paragraph. This article we will demonstrate how to add a page break at a specified location by searching a single word.
First, download Spire.Doc and install on your system. The Spire.Doc installation is clean, professional and wrapped up in a MSI installer. Then adds 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 steps of how to insert a page break at a specified location.
Step 1: Create a new word document and load the document from the file.
Document doc = new Document();
doc.LoadFromFile("Test.docx");
Step 2: Find the specified word "experience" where we want to insert the page break.
TextSelection[] selections = doc.FindAllString("experience", true, true);
Step 3: Traverse each word "experience".
foreach (TextSelection ts in selections)
{
TextRange range = ts.GetAsOneRange();
Paragraph paragraph = range.OwnerParagraph;
int index = paragraph.ChildObjects.IndexOf(range);
Break pageBreak = new Break(doc, BreakType.PageBreak);
}
Step 4: Create a new instance of page break and insert a page break after the word "experience".
Break pageBreak = new Break(doc, BreakType.PageBreak); paragraph.ChildObjects.Insert(index + 1, pageBreak);
Step 5: Save the word document to file and process it.
doc.SaveToFile("Break.docx", FileFormat.Docx);
System.Diagnostics.Process.Start("Break.docx");
Effective screenshot of the inserted page break after the word "experience":
Full codes:
using Spire.Doc;
using Spire.Doc.Documents;
using Spire.Doc.Fields;
namespace InsertPageBreak
{
class Program
{
static void Main(string[] args)
{
Document doc = new Document();
doc.LoadFromFile("Test.docx");
TextSelection[] selections = doc.FindAllString("experience", true, true);
foreach (TextSelection ts in selections)
{
TextRange range = ts.GetAsOneRange();
Paragraph paragraph = range.OwnerParagraph;
int index = paragraph.ChildObjects.IndexOf(range);
Break pageBreak = new Break(doc, BreakType.PageBreak);
paragraph.ChildObjects.Insert(index + 1, pageBreak);
}
doc.SaveToFile("Break.docx", FileFormat.Docx);
System.Diagnostics.Process.Start("Break.docx");
}
}
}
Copy Formatting from One Cell or Range to Another in C#, VB.NET
2014-08-28 06:30:47 Written by KoohjiWhen we are dealing with Excel spreadsheets, we may get a cell or a range of cells formatted, then we can use the Format Painter to quickly copy formatting from one place and apply it to another. It saves us much time to do so if we want to format a cell or cells with the previous cell formatting. In this article, I'll introduce you how to copy formatting from a range of cells to another using Spire.XLS.
As is shown in the screenshot of test file, contents in the first column have been formatted with different styles, what we want is to correspondingly apply cell formatting from column 1 to column 3.
Code snippets:
Step 1: Create a new instance of Wordbook class and load the test file from disk.
Workbook workbook = new Workbook();
workbook.LoadFromFile("Test.xlsx");
Step 2: Get the worksheet from workbook.
Worksheet sheet = workbook.Worksheets[0];
Step 3: Copy the cell formatting from column 1 and apply to cells of column 3.
int count = sheet.Rows.Count();
for (int i = 1; i < count + 1; i++)
{
sheet.Range[string.Format("C{0}", i)].Style = sheet.Range[string.Format("A{0}", i)].Style;
}
Step 4: Save to a new Excel file.
workbook.SaveToFile("Result.xlsx", ExcelVersion.Version2010);
Result:
Full Code:
static void Main(string[] args)
{
Workbook workbook = new Workbook();
workbook.LoadFromFile("Test.xlsx");
Worksheet sheet = workbook.Worksheets[0];
int count = sheet.Rows.Count();
for (int i = 1; i < count + 1; i++)
{
sheet.Range[string.Format("C{0}", i)].Style = sheet.Range[string.Format("A{0}", i)].Style;
}
workbook.SaveToFile("Result.xlsx", ExcelVersion.Version2010);
}
Private Shared Sub Main(args As String())
Dim workbook As New Workbook()
workbook.LoadFromFile("Test.xlsx")
Dim sheet As Worksheet = workbook.Worksheets(0)
Dim count As Integer = sheet.Rows.Count()
For i As Integer = 1 To count
sheet.Range(String.Format("C{0}", i)).Style = sheet.Range(String.Format("A{0}", i)).Style
Next
workbook.SaveToFile("Result.xlsx", ExcelVersion.Version2010)
End Sub
