Merge multiple pdf into one pdf using iTextSharp using c#

Prakash Mondal

I have multiple pdf pages. where two pages into one pdf file. One page is Portrait and another is Landscap of each pdf file.

I want to browse all pdf and generate all pdf into one pdf file using c# windows form application.

Please solve this.

3 Replies

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Mohamed Abedallah7y ago
You can merge PDF files of different sizes using LEADTOOLS PDFFile class. This class has a MergeWith() method that you can use as follows:
string sourceFileName1 = @"File1.pdf";
string sourceFileName2 = @"File2.pdf";
string sourceFileName3 = @"File3.pdf";

string destinationFileName = @"Merged.pdf";

// Merge 1 with (2, 3) and form destination
PDFFile pdfFile = new PDFFile(sourceFileName1);
pdfFile.MergeWith(new string[] { sourceFileName2, sourceFileName3}, destinationFileName);
The output Merged.pdf will maintain the page sizes of each of the original pages from files 1, 2, and 3.
See this link:
https://www.leadtools.com/sdk/pdf

You can also try LEADTOOLS virtual Document feature that allows you to merge documents regardless of the input type. See this forum:
https://www.leadtools.com/support/forum/posts/t12249-Code-Tip---NET-Virtual-Document-Demo
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Salman Beg7y ago
Hi.
Follow this link,

https://dotnet2developer.blogspot.com/2017/11/merge-number-of-pdf-into-single-pdf.html

Thanks
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alice yang7y ago
Check this article:

https://www.e-iceblue.com/Tutorials/Spire.PDF/Spire.PDF-Program-Guide/Merge-PDF-Files-with-New-Method-in-C.html
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