Hi,
I have a working piece of code that does the following:
1. Read a PDF and fill out the form fields.
2. Create a new document from scratch
3. Read a fix PDF
4. Concatenate the 3 pages and save to file.
I don't want to save anything to file but the resulting PDF.
I'd like to know if there a any big mistakes. What could be done
in a better way.
Thanx and greetings
Frank
// Loading first PDF with form fields into baosFirstPage
FileInputStream fisFirstPage = new FileInputStream(SRC_FILE_1);
ByteArrayOutputStream baosFirstPage = new ByteArrayOutputStream();
PdfReader readerFirstPage = new PdfReader(fisFirstPage, null);
PdfStamper stamperFirstPage = new PdfStamper(readerFirstPage,
baosFirstPage);
stamperFirstPage.setFormFlattening(true);
AcroFields form = stamperFirstPage.getAcroFields();
// Filling form fields
setFields(form);
stamperFirstPage.close();
// Building 2nd page from scratch into baosProducts
Document document = new Document();
ByteArrayOutputStream baosProducts = new ByteArrayOutputStream();
PdfWriter.getInstance(document, baosProducts);
document.open();
document.add(new Paragraph("Products"));
document.close();
// Loading lastPage into baosLastPage
FileInputStream fisLastPage = new FileInputStream(SRC_FILE_2);
ByteArrayOutputStream baosLastPage = new ByteArrayOutputStream();
PdfReader readerLastPage = new PdfReader(fisLastPage, null);
PdfStamper stamperLastPage = new PdfStamper(readerLastPage,
baosLastPage);
stamperLastPage.close();
// Concatenating the 3 byte array streams into baosResult;
ByteArrayOutputStream baosResult = new ByteArrayOutputStream();
PdfCopyFields copy = new PdfCopyFields(baosResult);
copy.addDocument(new PdfReader(baosFirstPage.toByteArray()));
copy.addDocument(new PdfReader(baosProducts.toByteArray()));
copy.addDocument(new PdfReader(baosLastPage.toByteArray()));
copy.close();
// Write result to file
PdfReader readerResult = new PdfReader(baosResult.toByteArray());
PdfStamper stamperResult = new PdfStamper(readerResult, new
FileOutputStream(DST_FILE));
stamperResult.close();
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