Split PDF

[topcat30]

Hi all, are we able to split PDFs by a given page range?

[zlangner]

Yes. I'm not sure what exactly you mean so I'm going to assume you have a known page range that you want to extract from a provided pdf stream.

using System.Collections.Generic;
using System.IO;
using UglyToad.PdfPig;
using UglyToad.PdfPig.Writer;

namespace MySplitter
{
    public static class PdfPigExtensions
    {
        public static MemoryStream ExtractPages(Stream inputStream, int firstPage, int lastPage)
        {
            var ms = new MemoryStream();
            using (var destDoc = new PdfDocumentBuilder(ms, disposeStream: false))
            using (var srcDoc = PdfDocument.Open(inputStream))
            {
                int numPages = srcDoc.NumberOfPages;


                // copy the specific page range from source into the new destination
                srcDoc.CopyPagesTo(firstPage, lastPage, destDoc);
            }

            ms.Position = 0;
            return ms;
        }

        public static List<PdfPageBuilder> CopyPagesTo(this PdfDocument srcDoc, int pageFrom, int pageTo, PdfDocumentBuilder destDoc)
        {
            var newPages = new List<PdfPageBuilder>();

            for (int i = pageFrom; i <= pageTo; i++)
            {
                // Get the page from the external document...
                var page = destDoc.AddPage(srcDoc, i);

                // and copy to the resulting PDF
                newPages.Add(page);
            }

            return newPages;
        }
    }
}

[topcat30]

You are indeed legendary. thanks again.

[topcat30]

Legend thankyou. Ill give it a crack this arvo Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for Windows

…

________________________________ From: Zach Langner ***@***.***> Sent: Thursday, March 10, 2022 8:19:18 AM To: UglyToad/PdfPig ***@***.***> Cc: topcat30 ***@***.***>; Author ***@***.***> Subject: Re: [UglyToad/PdfPig] Split PDF (Discussion #423) Yes. I'm not sure what exactly you mean so I'm going to assume you have a known page range that you want to extract from a provided pdf stream. using System.Collections.Generic; using System.IO; using UglyToad.PdfPig; using UglyToad.PdfPig.Writer; namespace MySplitter { public static class PdfPigExtensions { public static MemoryStream ExtractPages(Stream inputStream, int firstPage, int lastPage) { var ms = new MemoryStream(); using (var destDoc = new PdfDocumentBuilder(ms, disposeStream: false)) using (var srcDoc = PdfDocument.Open(inputStream)) { int numPages = srcDoc.NumberOfPages; // copy the specific page range from source into the new destination srcDoc.CopyPagesTo(firstPage, lastPage, destDoc); } ms.Position = 0; return ms; } public static List<PdfPageBuilder> CopyPagesTo(this PdfDocument srcDoc, int pageFrom, int pageTo, PdfDocumentBuilder destDoc) { var newPages = new List<PdfPageBuilder>(); for (int i = pageFrom; i <= pageTo; i++) { // Get the page from the external document... var page = destDoc.AddPage(srcDoc, i); // and copy to the resulting PDF newPages.Add(page); } return newPages; } } } — Reply to this email directly, view it on GitHub<#423 (comment)>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/AHHGIUXZXZTMGGAI3ASVIL3U7EIVNANCNFSM5PAADA3Q>. You are receiving this because you authored the thread.Message ID: ***@***.***>