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Thread: Merging PDF Files using PDFBox in Sub/Directories

  1. #1
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    Default Merging PDF Files using PDFBox in Sub/Directories

    Hi,

    I am currently trying to create a program that merges all the files in directories and sub-directories (automatically) and rename them according to the directory/sub0directory they are in. I am trying to acheive this using the PDFBox library.

    As of now I have found a script that reads all the files and folders in a directory and sub-directories.

    My problem is that I don't know how to acheive the merging of PDFs (i.e. merging the files and renaming them according to the folder name).

    I found a tutorial on how to merge files with PDFBox here but I need to apply it to do it automatically for all the files in the directories.

    The code that lists all the files and folders is this:

    import java.io.File;
     
    public class Main {
     
      static int spc_count=-1;
     
      static void Process(File aFile) {
        spc_count++;
        String spcs = "";
        for (int i = 0; i < spc_count; i++)
          spcs += " ";
        if(aFile.isFile())
          System.out.println(spcs + "[FILE] " + aFile.getName());
        else if (aFile.isDirectory()) {
          System.out.println(spcs + "[DIR] " + aFile.getName());
          File[] listOfFiles = aFile.listFiles();
          if(listOfFiles!=null) {
            for (int i = 0; i < listOfFiles.length; i++)
              Process(listOfFiles[i]);
          } else {
            System.out.println(spcs + " [ACCESS DENIED]");
          }
        }
        spc_count--;
      }
     
      public static void main(String[] args) {
        String nam = "C:\\Documents and Settings\\student3\\Desktop\\PDFs";
        File aFile = new File(nam);
        Process(aFile);
      }
     
     
     
    }

    Any help please?

    Thanks & Regards,
    blivori


  2. #2
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    Default Re: Merging PDF Files using PDFBox in Sub/Directories

    program that merges all the files in directories and sub-directories
    Could you explain what it means to merge files?
    Do you want to copy the contents of all the files into one file?

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    Default Re: Merging PDF Files using PDFBox in Sub/Directories

    In a folder there are various PDF files for example in PDF_Folder1 there are 5 files PDF1, PDF2, PDF3 and PDF4.

    Now what I want to do is Merge all the PDFs (PDF1-4) and automatically rename it according to the folder name, which in this case is PDF_Folder1.

    Example:

    [DIR] PDF FOLDER 1
    [____FILE] PDF1
    [____FILE] PDF2
    [____FILE] PDF3
    [____FILE] PDF4
    [__SUB-DIR] PDF FOLDER 2
    [____FILE] PDF1
    [____FILE] PDF2
    [____FILE] PDF3

    So:
    - All the PDF files in PDF FOLDER 1 will be merged as a single PDF and the output file called PDF FOLDER 1.
    - All the PDF files in Sub-Directory PDF FOLDER 2 will be merged as a single PDF and the output file called PDF FOLDER 2

    Thanks for you reply,
    blivori

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    Default Re: Merging PDF Files using PDFBox in Sub/Directories

    I'm not sure about how to preserve the contents of a PDF file, but for text files:
    Open output file
    begin loop to work thru a list of files
    copy next file to output file
    end loop
    close output file

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    Default Re: Merging PDF Files using PDFBox in Sub/Directories

    I was trying to acheive it by using PDFBox.

    It can be done.

    The problem is how to get the files in the directory and sub-directory, add them to some kind of array or db, and link them with the PDFBox Merger Utility

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    Default Re: Merging PDF Files using PDFBox in Sub/Directories

    Is this a question of reading API doc for the PDFBox Merger utility to understand how to use it?

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    Default Re: Merging PDF Files using PDFBox in Sub/Directories

    Kind of..

    I just want to know how to save the files in some sort of array or database and the use the PDFBox Merger Utility to rename it according to the folder/sub-folder the original PDF files where stored in.

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    Default Re: Merging PDF Files using PDFBox in Sub/Directories

    save the files in some sort of array
    Your code does this now:
    File[] listOfFiles = aFile.listFiles(); // saves file references in an array

    What else do you need?

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    Default Re: Merging PDF Files using PDFBox in Sub/Directories

    yes, now I need to rename the merged pdf according to the folder or sub-folder.

    basically you put the software in the main folder and it automatically processes the files in the folders and sub-folders and renames the files according to the directory they are in.

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    Default Re: Merging PDF Files using PDFBox in Sub/Directories

    You can use the File class to rename files.

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    Default Re: Merging PDF Files using PDFBox in Sub/Directories

    This thread has been cross posted here:

    http://www.java-forums.org/new-java/46901-merging-pdf-files-using-pdfbox-sub-directories.html

    Although cross posting is allowed, for everyone's benefit, please read:

    Java Programming Forums Cross Posting Rules

    The Problems With Cross Posting


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