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The Syncfusion UWP 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.
Here is an example of how to split PDF files in C# using the Syncfusion UWP PDF library. Users can split a PDF file into a single page or multiple page PDF document with just a few lines of code.
//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, System.IO.FileAttributes.Normal);
ms.Position = 0;
}
}
//Zip the filename
MemoryStream memoryStream = new MemoryStream();
zipArchive.Save(memoryStream,false);
Save(memoryStream, "SplitDocuments.zip");
}A range of pages can be split into a separate PDF document.
//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 } });
}
//Zips the filename
MemoryStream memoryStream = new MemoryStream();
zipArchive.Save(memoryStream, false);
Save(memoryStream, "SplitDocuments.zip");
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);
}Users can get specific pages or delete certain pages from a PDF document.
//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, System.IO.FileAttributes.Normal);
ms.Position = 0;
}
//Zip the filename
MemoryStream memoryStream = new MemoryStream();
zipArchive.Save(memoryStream,false);
Save(memoryStream, "SplitDocuments.zip");
}Split a PDF document based on bookmarks.
//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 PDF file with the bookamark title's name
MemoryStream ms = new MemoryStream();
loadedDocument.Save(ms);
zipArchive.AddItem(bookmark.Title, ms, false, System.IO.FileAttributes.Normal);
ms.Position = 0;
}
}
}
}
//Zips the filename
MemoryStream memoryStream = new MemoryStream();
zipArchive.Save(memoryStream, false);
Save(memoryStream, "SplitDocuments.zip");
}CASE STUDY
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