topic Re: Merge several PDF into one in Talend Studio

Merge several PDF into one

hcroce — Sat, 16 Nov 2024 00:00:10 GMT

Hello,

Is there a way to merge several PDF into one in Talend Studio?

Thank you for your help.

Hervé.

Re: Merge several PDF into one

gjeremy1617088143 — Tue, 29 Jun 2021 08:29:41 GMT

Hi ,I think you can do it via custom components or via java hardcode.

You can find custom component on https://exchange.talend.com/

you can use org.apache.pdfbox

and this routine :

public void mergePDFFiles(List<File> files,

String mergedFileName) {

try {

PDFMergerUtility pdfmerger = new PDFMergerUtility();

for (File file : files) {

PDDocument document = PDDocument.load(file);

pdfmerger.setDestinationFileName(mergedFileName);

pdfmerger.addSource(file);

pdfmerger.mergeDocuments(MemoryUsageSetting.setupTempFileOnly());

document.close();

}

} catch (IOException e) {

logger.error("Error to merge files. Error: " + e.getMessage());

}

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Re: Merge several PDF into one

hcroce — Tue, 29 Jun 2021 10:01:43 GMT

Hello Jeremy,

Thanks for your answer.

I searched for "merge PDF" in custom component but without sucess.

I'm not a expert in studio... So, I'm not sure to understand how to do the second way you mentioned.

But I'll try as soon as I can.

Hervé.

Re: Merge several PDF into one

Sourav_Roy — Tue, 29 Jun 2021 13:59:10 GMT

Hi,

Instead of using Java Routines you can alternately use python coupled with Talend Open Studio.

Steps to achieve the same:

1) Create a python file in your local machine "pdf_merge.py" on the same location as the PDF Files

2) Reuse the code snippet below:

from PyPDF2 import PdfFileMerger, PdfFileReader

mergedObject = PdfFileMerger()

for fileNumber in range(1, 117): #Change 117 to number of files you have (E.g. - 116 Files then 117)

mergedObject.append(PdfFileReader('Test_pdf_' + str(fileNumber)+ '.pdf', 'rb')) #correct the indentation

mergedObject.write("mergedfilesoutput.pdf")

3) Add it to your Existing Talend Graph Flow -

For Example,