CODEWITHSUNDEEP
androidpdfpdfbox
Dittimon
Dittimon

Reputation: 1026

How to add PDFBox to an Android project or suggest alternative

I'm attempting to open an existing pdf file and then add another page to the pdf document from within an Android application. On the added page, I need to add some text and an image.

I am wanting to give PDFBox a try. Other solutions such as iTextPDF aren't suitable for our company because of the licencing terms/price.

I have a library project with the main code base, and also full and lite projects that reference the library project.

I have downloaded the jar from http://pdfbox.apache.org/download.html and copied it into the library projects lib folder and added the pdfbox-app-1.6.0.jar file to the java build path libraries.

I am able to import the librarys successfully eg import org.apache.pdfbox.pdmodel.PDDocument; and compile all the projects. However when I run the application it crashes on PDDocument document = new PDDocument(); with the following error.

E/AndroidRuntime(24451): java.lang.NoClassDefFoundError: org.apache.pdfbox.pdmodel.PDDocument

I read somewhere that version 1.5 of PDFBox onwards didn't work with Android so I tried downloading the pdfbox-app-1.4.0.jar file but got the same issue. I also added the library to the build path in my full and lite projects but I got the same error or eclipse kept crashing with an out of memory error.

Can anyone tell me what I am doing wrong? Have I downloaded the wrong file? Have I imported it correctly?

Thanks,

Upvotes: 25

Views: 23070

Answers (4)

Angel
Angel

Reputation: 190

I got the same error. I've solved this way, the documentation says:

Before calls to PDFBox are made it is required to initialize the library's resource loader. Add the following line before calling PDFBox methods:

PDFBoxResourceLoader.init(getApplicationContext());

An example app is located in the sample directory and includes examples of common tasks.

To read a PDF from Uri with PDFBox i just do:

@Override
protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
    if (requestCode == ESCOGER_DOCUMENTO_REQUEST_CODE) {
        if (resultCode == RESULT_OK && data != null) {
            Uri archivo = data.getData();
            switch (extensionArchivo(this, archivo)) {
                case "jpg":
                case "png":
                    //Procesar imagen
                    break;
                case "pdf":
                    PDFBoxResourceLoader.init(getApplicationContext());
                    ContentResolver contentResolver = getContentResolver();      // Get a content resolver to access the Uri
                    InputStream inputStream = null;                              // Open an input stream to the Uri
                    try {
                        inputStream = contentResolver.openInputStream(archivo);
                    } catch (IOException e) {
                        //Log.e("PdfBox-Android-Sample", "Exception thrown while loading document to strip", e);
                    }
                    String parsedText = null;                                    // Load the PDF document from the input stream
                    PDDocument document = null;
                    try {
                        document = PDDocument.load(inputStream);
                    } catch (IOException e) {
                        //Log.e("PdfBox-Android-Sample", "Exception thrown while loading document to strip", e);
                    }

                    try {
                        PDFTextStripper pdfStripper = new PDFTextStripper();
                        pdfStripper.setStartPage(0);
                        pdfStripper.setEndPage(1);
                        parsedText = "Parsed text: " + pdfStripper.getText(document);
                    } catch (IOException e) {
                        //Log.e("PdfBox-Android-Sample", "Exception thrown while stripping text", e);
                    } finally {
                        try {
                            if (document != null) document.close();
                        } catch (IOException e) {
                            //Log.e("PdfBox-Android-Sample", "Exception thrown while closing document", e);
                        }
                    }
                    Toast.makeText(this, parsedText, Toast.LENGTH_SHORT).show();
                    break;
                default:
                    // Salir y mostrar mensaje "Archivo no permitido"
            }

        } else {
            Toast.makeText(this, "Error al subir documento", Toast.LENGTH_LONG).show();
        }
    }
    super.onActivityResult(requestCode, resultCode, data);
}

Upvotes: 0

Jason
Jason

Reputation: 13964

Android Port of PDFBox

There's a free Android Port of PDFBox available here:

https://github.com/TomRoush/PdfBox-Android

Upvotes: 16

sherpya
sherpya

Reputation: 4936

PDFBox uses java awt and swing, even for non UI tasks, I've tried to remove references but there are a lot of files, and I was removing too much stuff

I've just tested PDFjet http://pdfjet.com/os/edition.html it's bsd licensed (plus commercial version with more features), with this sample code (ripped from Example_03.java) I was able to convert a jpeg to a pdf

    FileOutputStream fos = null;
    try
    {
        fos = new FileOutputStream("/sdcard/sample.pdf");
        PDF pdf = new PDF(fos);
        InputStream f = getApplicationContext().getAssets().open("img0.jpg"); 
        Image image = new Image(pdf, f, ImageType.JPEG);
        Page page = new Page(pdf, A4.PORTRAIT);
        image.setPosition(0, 0);
        image.drawOn(page);
        pdf.flush();
        fos.close();
    } catch (Exception e)
    {
        e.printStackTrace();
    }

I found the link here http://java-source.net/open-source/pdf-libraries

Upvotes: 19

sateesh
sateesh

Reputation: 121

i think the library class files are not included in the apk file. The library classes need to be converted into dex files then only it will be detected.please refer http://developer.android.com/guide/developing/building/index.html

Upvotes: 0

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