ByteScout Premium Suite – C# – Remove Empty Pages from PDF with PDF Extractor SDK

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ByteScout Premium Suite – C# – Remove Empty Pages from PDF with PDF Extractor SDK

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How to remove empty pages from PDF with PDF extractor SDK in C# and ByteScout Premium Suite

This code in C# shows how to remove empty pages from PDF with PDF extractor SDK with this how to tutorial

An easy to understand sample source code to learn how to remove empty pages from PDF with PDF extractor SDK in C# Want to remove empty pages from PDF with PDF extractor SDK in your C# app? ByteScout Premium Suite is designed for it. ByteScout Premium Suite is the set that includes 12 SDK products from ByteScout including tools and components for PDF, barcodes, spreadsheets, screen video recording.

Want to quickly learn? This fast application programming interfaces of ByteScout Premium Suite for C# plus the guidelines and the code below will help you quickly learn how to remove empty pages from PDF with PDF extractor SDK. This C# sample code is all you need for your app. Just copy and paste the code, add references (if needs to) and you are all set! This basic programming language sample code for C# will do the whole work for you to remove empty pages from PDF with PDF extractor SDK.

If you want to try other source code samples then the free trial version of ByteScout Premium Suite is available for download from our website. Just try other source code samples for C#.

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Program.cs

      using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using Bytescout.PDFExtractor;

namespace RemoveEmptyPagesExample
{
    /// <summary>
    /// The example demonstrates detection of empty pages, splitting the document to separate
    /// pages excluding empty ones, then combine parts back to a single document.
    /// </summary>
    class Program
    {
        static string InputFile = @".\sample.pdf";
        static string OutputFile = @".\result.pdf";
        static string TempFolder = @".\temp";

        static void Main(string[] args)
        {
            // Create and setup Bytescout.PDFExtractor.TextExtractor instance
            TextExtractor extractor = new TextExtractor("demo", "demo");
            
            // Load PDF document
            extractor.LoadDocumentFromFile(InputFile);

            // List to keep non-empty page numbers
            List<string> nonEmptyPages = new List<string>();

            // Iterate through pages
            for (int pageIndex = 0; pageIndex < extractor.GetPageCount(); pageIndex++)
            {
                // Extract page text
                string pageText = extractor.GetTextFromPage(pageIndex);
                // If extracted text is not empty keep the page number
                if (pageText.Length > 0)
                    nonEmptyPages.Add((pageIndex + 1).ToString());
            }

            // Cleanup
            extractor.Dispose();


            // Form comma-separated list of page numbers to split("1,3,5")
            string ranges = string.Join(",", nonEmptyPages);

            // Create Bytescout.PDFExtractor.DocumentSplitter instance
            DocumentSplitter splitter = new DocumentSplitter("demo", "demo");
            splitter.OptimizeSplittedDocuments = true;

            // Split document by non-empty in temp folder
            string[] parts = splitter.Split(InputFile, ranges, TempFolder);

            // Cleanup
            splitter.Dispose();


            // Create Bytescout.PDFExtractor.DocumentMerger instance
            DocumentMerger merger = new DocumentMerger("demo", "demo");

            // Merge parts
            merger.Merge(parts, OutputFile);

            // Cleanup
            merger.Dispose();

            // Delete temp folder
            Directory.Delete(TempFolder, true);


            // Open result document in default associated application (for demo purpose)
            ProcessStartInfo processStartInfo = new ProcessStartInfo(OutputFile);
            processStartInfo.UseShellExecute = true;
            Process.Start(processStartInfo);
        }
    }
}