static void Main(string[] args)
{
const string inputFile = "sample.pdf";
const string resultFile = "result.pdf";
int pageCount;
// Get document page count
using (var infoExtractor = new InfoExtractor("demo", "demo"))
{
infoExtractor.LoadDocumentFromFile(inputFile);
pageCount = infoExtractor.GetPageCount();
}
// Process the document by 10-page pieces
int numberOfThreads = pageCount / 10;
if (pageCount - numberOfThreads * 10 > 0)
{
numberOfThreads += 1;
}
WaitHandle[] doneEvents = new WaitHandle[numberOfThreads];
Stopwatch stopwatch = Stopwatch.StartNew();
int startPage, endPage;
string[] pieces = new string[numberOfThreads];
for (int i = 0; i < numberOfThreads; i++)
{
doneEvents[i] = new ManualResetEvent(false);
startPage = i * 10;
endPage = Math.Min(pageCount - 1, (i + 1) * 10 - 1);
pieces[i] = string.Format("temp-{0}-{1}.pdf", startPage, endPage);
ThreadPool.QueueUserWorkItem(new WaitCallback(ThreadProc),
new object[] { i, doneEvents[i], inputFile, pieces[i], startPage, endPage });
}
// Wait for all threads
WaitHandle.WaitAll(doneEvents);
// Merge pieces
using (DocumentMerger merger = new DocumentMerger("demo", "demo"))
merger.Merge(pieces, resultFile);
// Delete temp files
foreach (string tempFile in pieces)
{
File.Delete(tempFile);
}
Console.WriteLine("All done in {0}.", stopwatch.Elapsed);
Console.WriteLine();
Console.WriteLine("Press any key to exit...");
Console.ReadKey();
}
static void Main(string[] args)
{
// Create Bytescout.PDFExtractor.InfoExtractor instance
InfoExtractor infoExtractor = new InfoExtractor();
infoExtractor.RegistrationName = "demo";
infoExtractor.RegistrationKey = "demo";
TextExtractor textExtractor = new TextExtractor();
textExtractor.RegistrationName = "demo";
textExtractor.RegistrationKey = "demo";
// List all PDF files in directory
foreach (string file in Directory.GetFiles(@"..\..\..\..", "*.pdf"))
{
infoExtractor.LoadDocumentFromFile(file);
Console.WriteLine("File Name: " + Path.GetFileName(file));
Console.WriteLine("Page Count: " + infoExtractor.GetPageCount());
Console.WriteLine("Author: " + infoExtractor.Author);
Console.WriteLine("Title: " + infoExtractor.Title);
Console.WriteLine("Producer: " + infoExtractor.Producer);
Console.WriteLine("Subject: " + infoExtractor.Subject);
Console.WriteLine("CreationDate: " + infoExtractor.CreationDate);
Console.WriteLine("Text (first 2 lines): ");
// Load a couple of lines from each document
textExtractor.LoadDocumentFromFile(file);
using (StringReader stringReader = new StringReader(textExtractor.GetTextFromPage(0)))
{
Console.WriteLine(stringReader.ReadLine());
Console.WriteLine(stringReader.ReadLine());
}
Console.WriteLine();
}
// Cleanup
infoExtractor.Dispose();
textExtractor.Dispose();
Console.WriteLine();
Console.WriteLine("Press any key to continue...");
Console.ReadLine();
}
static void Main(string[] args)
{
const string inputFileName = "sample.pdf";
const string resultFileName = "result.txt";
int CHUNK_SIZE = 10;
int pageCount;
// Get document page count
using (var infoExtractor = new InfoExtractor("demo", "demo"))
{
infoExtractor.LoadDocumentFromFile(inputFileName);
pageCount = infoExtractor.GetPageCount();
}
Stopwatch stopwatch = Stopwatch.StartNew();
int numberOfThreads = pageCount / CHUNK_SIZE;
if (pageCount - numberOfThreads * CHUNK_SIZE > 0)
{
numberOfThreads += 1;
}
ManualResetEvent allFinishedEvent = new ManualResetEvent(false);
_runningThreadsCounter = 0;
string[] chunks = new string[numberOfThreads];
for (int i = 0; i < numberOfThreads; i++)
{
// Wait for the queue
_threadLimiter.WaitOne();
var startPage = i * CHUNK_SIZE;
var endPage = Math.Min(pageCount - 1, (i + 1) * CHUNK_SIZE - 1);
// Prepare temp file name for the chunk
chunks[i] = string.Format("temp-{0}-{1}.txt", startPage, endPage);
// Increase the thread counter
Interlocked.Increment(ref _runningThreadsCounter);
ThreadPool.QueueUserWorkItem(new WaitCallback(ThreadProc),
new object[] { i, allFinishedEvent, inputFileName, chunks[i], startPage, endPage });
}
// Wait for all threads
allFinishedEvent.WaitOne();
// Merge pieces into a single text file
using (Stream resultFileStream = File.Create(resultFileName))
{
foreach (string tempFile in chunks)
{
using (Stream srcStream = File.OpenRead(tempFile))
srcStream.CopyTo(resultFileStream);
}
}
// Delete temp files
foreach (string tempFile in chunks)
{
File.Delete(tempFile);
}
Console.WriteLine("All done in {0}.", stopwatch.Elapsed);
Console.WriteLine();
Console.WriteLine("Press any key to exit...");
Console.ReadKey();
}