Use iTextSharp for .net can Merge encrypted Pdf files,

but use QuickPDF can't Merge encrypted Pdf files?

Thanks!

 

Many pdf-files are encrypted - so QuickPDF can do this job, too.

I don't know if it's a problem merging encrypted pdf-files but:

QuickPDF can load a pdf...

then you can check if it's encrypted...

if so you can decrypt it with an easy function call ;-)

 

Cheers and welcome here,

Ingo 

Hi.

Can you see

https://skydrive.live.com/?cid=4c90f2a935f13d29&sc=documents&uc=1&id=4C90F2A935F13D29%21112#

this is what i do use itextsharp.dll to merge 3 encrypted pdf files to a pdf file.

when you double click ConsoleApplication1.exe, then it will create a PDFS.pdf that is merge from the  3 encrypted pdf files.

but i can't do it use QuickPDF.

How can do it use QuickPDF with vb6?

Thanks!

when use c#, below is the whole code:

////////////////////Code Begin//////////////////////

sing System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.IO;

using iTextSharp.text;

using iTextSharp.text.pdf;

namespace ConsoleApplication1

{

    class Program

    {

        static void Main(string[] args)

        {

            MergePdfDoc(System.AppDomain.CurrentDomain.BaseDirectory + "PDFS");

        }

        static private void MergePdfDoc(string sPath)

        {

            try

            {

                Document document = new Document(PageSize.A4, 50f, 50f, 50f, 50f);

                PdfReader reader = null;

                PdfCopy copy = new PdfCopy(document, new FileStream(sPath + ".pdf", FileMode.Append));

                document.Open();

                for (int i = 0; i <= Directory.GetFiles(sPath).Length; i++)

                {

                    if (System.IO.File.Exists(string.Concat(new object[] { sPath, @"\", i, ".pdf" })) )

                    {

                        reader = new PdfReader(string.Concat(new object[] { sPath, @"\", i, ".pdf" }));

                        document.NewPage();

                        PdfImportedPage importedPage = copy.GetImportedPage(reader,  1);

                        copy.AddPage(importedPage);

                    }

                }

                if ((document != null) && document.IsOpen())

                {

                    if (copy.PageNumber == 0)

                    {

                        document.NewPage();

                    }

                    document = null;

                    if (reader != null)

                    {

                        reader.Close();

                    }

                    copy.Close();

                }

            }

            catch (Exception exception)

            {

            }

        }

    }

}

//////////////////Code End////////////////////////

whether i use ExtractFilePages or CapturePage or CopyPageRanges I can't merge the  3 encrypted pdf files to a pdf file as itextsharp.dll.

Can you help?

Thanks!

 

 

What you have to do is ...
first the create ...
then LoadFromFile or similar ...
then check if the file is encrypted:
If ( QP.EncryptionStatus > 0 ) Then
   QP.Decrypt;
then the merge-syntax ...

then the save.

 

About encryption you can read here:
http://www.quickpdflibrary.com/help/quickpdf/DocumentProperties.php - http://www.quickpdflibrary.com/help/quickpdf/DocumentProperties.php

About merge you can read here:
http://www.quickpdflibrary.com/help/quickpdf/DocumentManipulation.php - http://www.quickpdflibrary.com/help/quickpdf/DocumentManipulation.php

 

Samples in different development languages (packed as zip) are here:
http://www.quickpdflibrary.com/samples/index.php - http://www.quickpdflibrary.com/samples/index.php

 

In the developer-guide starting at page 28 you'll find a good merge-sample:
http://www.quickpdflibrary.com/docs/Quick%20PDF%20Library%207%20Developer%20Guide.pdf - http://www.quickpdflibrary.com/docs/Quick%20PDF%20Library%207%20Developer%20Guide.pdf
It's a pascal-sample but for a developer it shouldn't be a problem to convert it to any other language.

 

Cheers, Ingo

Thank you for your reply!

I am wrong!