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Stitch PDF documents
This code sample shows how to stich PDF pages from an existing PDF document to a newly generated PDF using TallPDF.NET.
Code sample to stitch PDF documents
using System;
using System.IO;
using TallComponents.PDF.Layout;
using TallComponents.PDF.Layout.Paragraphs;
using TallComponents.PDF.Layout.Shapes;
using TallComponents.PDF.Layout.Fonts;
namespace PageShapeSample
{
class Program
{
static void Main(string[] args)
{
//open two existing PDFs
using (FileStream fileA = new FileStream(
"input.pdf", FileMode.Open, FileAccess.Read))
using (FileStream fileB = new FileStream(
"input.pdf", FileMode.Open, FileAccess.Read))
{
//create a new document and add new content to it
Document document = new Document();
addNewContent(document);
//add the content of the two PDFs
addPages(document, fileA);
addPages(document, fileB);
//save new PDF to disk
using (FileStream file = new FileStream(
"out.pdf", FileMode.Create, FileAccess.Write))
{
document.Write(file);
}
}
}
//adds some filler text to a pdf section
static void addNewContent(Document document)
{
Section section = new Section();
document.Sections.Add(section);
for (int i = 0; i < 10; i++)
{
TextParagraph text = new TextParagraph();
text.SpacingAfter = 18;
section.Paragraphs.Add(text);
Fragment fragment = new Fragment();
fragment.Font = Font.Helvetica;
fragment.FontSize = 18;
fragment.Text = "Filler text...";
text.Fragments.Add(fragment);
}
}
//copy content from input filestream to the document
static void addPages(Document document, FileStream file)
{
PageShape pageShape = new PageShape(file, 0, "");
int n = pageShape.PageCount;
for (int i = 0; i < n; i++)
{
pageShape.PageIndex = i;
Section section = new Section();
section.StartOnNewPage = true;
section.PageSize = new PageSize(
pageShape.Width, pageShape.Height);
section.Margin.Left = 0;
section.Margin.Right = 0;
section.Margin.Top = 0;
section.Margin.Bottom = 0;
document.Sections.Add(section);
//clone the page to the new document
Drawing drawing = new Drawing(
pageShape.Width, pageShape.Height);
drawing.Shapes.Add(pageShape.Clone());
section.Paragraphs.Add(drawing);
}
}
}
}