Split a PDF into one file per page in C#

Since 1.0View as Markdown

Turn every page of a PDF into a file of its own.

Short answer

PdfDocument.Split returns one new document per page. Save each one under its own name. Inherited page attributes such as resources, media box and rotation are materialized on each page, so every file stands on its own.

#:package PdfNetStack@1.2.0
using PdfNetStack;

PdfDocument doc = PdfDocument.Open("report.pdf");
int number = 1;
foreach (PdfDocument single in doc.Split())   // one new document per page
{
    single.Save($"report-page-{number}.pdf");
    number++;
}
Console.WriteLine($"Wrote {number - 1} files");

dotnet add package PdfNetStack

Variations

To keep groups of pages together rather than single pages, import the pages you want into a new document, as in Extract pages from a PDF.

Edit pages
Command line: pdfnetstack split in.pdf ./pages
API: PdfDocument