Split PDF Files using Xamarin | Xamarin PDF library

Overview

The Syncfusion Xamarin PDF library allows users to split a PDF file into multiple sub-documents quickly and accurately. It also allows users to split, combine, import, and append PDFs.

Split PDF Xamarin

How to split PDF files using Xamarin

Install the Syncfusion.Pdf.Net.Core NuGet package in your project.
Create FileStream objects to represent input PDF files.
Create a PdfLoadedDocument object by passing the FileStream object.
Create a new PDF document using the PdfDocument class.
Use the ImportPage method of the PdfDocumentBase class to split a PDF document into multiple files.
Save the PdfDocument object to the FileStream object.

Here is an example of how to split PDF files in C# using the Syncfusion Xamarin PDF library. Users can split a PDF file into a single page or multiple-page PDF document with just a few lines of code.

c#
//Create a zip file     
Syncfusion.Compression.Zip.ZipArchive zipArchive = new Syncfusion.Compression.Zip.ZipArchive();
//Load an existing PDF document
Stream docStream = typeof(MainPage).GetTypeInfo().Assembly.GetManifestResourceStream("Input.pdf");
//Load the PDF document from stream
using (PdfLoadedDocument loadedDocument = new PdfLoadedDocument(docStream))
{
    //Iterate over the pages 
    for (int pageIndex = 0; pageIndex < loadedDocument.PageCount; pageIndex++)
    {
        //Create a new PdfDocument object
        using (PdfDocument outputDocument = new PdfDocument())
        {
            //Import the page from the loadedDocument to the outputDocument
            outputDocument.ImportPage(loadedDocument, pageIndex);
            //Save the document into a memory object
            MemoryStream ms = new MemoryStream();
            outputDocument.Save(ms);
            zipArchive.AddItem("Files" + pageIndex + ".pdf", ms, false, Syncfusion.Compression.FileAttributes.Normal);
            ms.Position = 0;
        }
    }
    //Zip the filename 
    MemoryStream memoryStream = new MemoryStream();
    zipArchive.Save(memoryStream, false);
    //Save the stream as a file in the device and invoke it for viewing
    Xamarin.Forms.DependencyService.Get<ISave>().SaveAndView("SplitDocuments.zip", "application/zip", memoryStream);
}

PDF split options

Split a range of pages into a separate PDF document

A range of pages can be split into a separate PDF document.

c#
//Create a zip file     
Syncfusion.Compression.Zip.ZipArchive zipArchive = new Syncfusion.Compression.Zip.ZipArchive();
//Load an existing PDF document
Stream docStream = typeof(MainPage).GetTypeInfo().Assembly.GetManifestResourceStream("Input.pdf");
//Load the PDF document from stream
using (PdfLoadedDocument loadedDocument = new PdfLoadedDocument(docStream))
{
    //Subscribe to the document split event.
    loadedDocument.DocumentSplitEvent += LoadDocument_DocumentSplitEvent;
    //Spit the document by ranges
    loadedDocument.SplitByRanges(new int[,] { { 0, 2 }, { 2, 4 } });
}
//Zip the filename 
MemoryStream memoryStream = new MemoryStream();
zipArchive.Save(memoryStream, false);
//Save the stream as a file in the device and invoke it for viewing
Xamarin.Forms.DependencyService.Get<ISave>().SaveAndView("SplitDocuments.zip", "application/zip", memoryStream);
 
void LoadDocument_DocumentSplitEvent(object sender, PdfDocumentSplitEventArgs args)
{
    //Save the resulting document
    MemoryStream ms = new MemoryStream();
    args.PdfDocumentData.CopyTo(ms);
    zipArchive.AddItem(Guid.NewGuid().ToString() + ".pdf", ms, false, System.IO.FileAttributes.Normal);
}

Import or delete certain pages from a PDF file

Users can get specific pages or delete certain pages from a PDF document.

c#
//Create a zip file     
Syncfusion.Compression.Zip.ZipArchive zipArchive = new Syncfusion.Compression.Zip.ZipArchive();
//Load an existing PDF document
Stream docStream = typeof(MainPage).GetTypeInfo().Assembly.GetManifestResourceStream("Input.pdf");
//Load the PDF document from stream
using (PdfLoadedDocument loadedDocument = new PdfLoadedDocument(docStream))
{
 
    //Create a new PdfDocument object
    using (PdfDocument outputDocument = new PdfDocument())
    {
        //Remove the first page in the PDF document  
        loadedDocument.Pages.RemoveAt(0);
        //Import certain pages to the new PDF document
        outputDocument.ImportPage(loadedDocument, 0);
        //Save the document into a memory object
        MemoryStream ms = new MemoryStream();
        outputDocument.Save(ms);
        zipArchive.AddItem("Files.pdf", ms, false, Syncfusion.Compression.FileAttributes.Normal);
        ms.Position = 0;
    }
    //Zip the filename 
    MemoryStream memoryStream = new MemoryStream();
    zipArchive.Save(memoryStream, false);
    //Save the stream as a file in the device and invoke it for viewing
    Xamarin.Forms.DependencyService.Get<ISave>().SaveAndView("SplitDocuments.zip", "application/zip", memoryStream);
}

Split a document based on bookmarks

Split a PDF document based on bookmarks.

c#
//Create a zip file     
Syncfusion.Compression.Zip.ZipArchive zipArchive = new Syncfusion.Compression.Zip.ZipArchive();
//Load an existing PDF document
Stream docStream = typeof(MainPage).GetTypeInfo().Assembly.GetManifestResourceStream("Input.pdf");
//Load the PDF document from stream
using (PdfLoadedDocument loadedDocument = new PdfLoadedDocument(docStream))
{
    //Create a bookmark object
    PdfBookmarkBase bookmarks = loadedDocument.Bookmarks;
    //Load the PDF document from stream
    foreach (PdfBookmark bookmark in bookmarks)
    {
        if (bookmark.Destination != null)
        {
            if (bookmark.Destination.Page != null)
            {
                int endIndex = bookmark.Destination.PageIndex;
                //Create a new PDF document
                using (PdfDocument document = new PdfDocument())
                {
                    foreach (PdfLoadedBookmark childBookmark in bookmark)
                    {
                        endIndex = childBookmark.Destination.PageIndex;
                    }
                    //Import the pages to the new PDF document
                    document.ImportPageRange(loadedDocument, bookmark.Destination.PageIndex, endIndex);
                    //Save the document into a memory object
                    MemoryStream ms = new MemoryStream();
                    document.Save(ms);
                    zipArchive.AddItem(bookmark.Title, ms, false, Syncfusion.Compression.FileAttributes.Normal);
                    ms.Position = 0;
                }
            }
        }
    }
    //Zip the filename 
    MemoryStream memoryStream = new MemoryStream();
    zipArchive.Save(memoryStream, false);
    //Save the stream as a file in the device and invoke it for viewing
    Xamarin.Forms.DependencyService.Get<ISave>().SaveAndView("SplitDocuments.zip", "application/zip", memoryStream);
}