PDF merge with some fields still editable
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PDF merge with some fields still editable
by luy
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Re: PDF merge with some fields still editable
by luy
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Re: PDF merge with some fields still editable
by Paulo Soares-3
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Re: PDF merge with some fields still editable
by Mark Storer-2
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Re: PDF merge with some fields still editable
by luy
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Re: PDF merge with some fields still editable
by luy
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Re: PDF merge with some fields still editable
by Paulo Soares-3
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Re: PDF merge with some fields still editable
by luy
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Thank you Paulo!
Finally, it worked. As a summary I write down what I did for people who may interest about it in the future. My intention is to output one merged pdfs based on 1, 2... N auto-generated pdf files (all dynamically generated based on the same template - XFA PDF form), auto-filling out necessary fields based on database, leaving other fields editable so that users can fill out them online. (0) stamp.setFormFlattening(true); stamp.partialFormFlattening(to_be_flattened_col_name); (1) Remove XFA PdfDictionary acro = (PdfDictionary)PdfReader.getPdfObject(reader.getCatalog().get(PdfName.ACROFORM)); acro.remove(new PdfName("XFA")); (2) Do AcroFields.renameField Be careful: http://1t3xt.info/api//com/lowagie/text/pdf/AcroFields.html#renameField(java.lang.String,%20java.lang.String) Renames a field. Only the last part of the name can be renamed. For example, if the original field is "ab.cd.ef" only the "ef" part can be renamed. (3) Generated InputStream[] based on (1), (2) (4) PdfCopyFields copy = new PdfCopyFields(new FileOutputStream(filename)); (5) for (int i=0; i< InputStream[].length; i++) { copy.addDocument(InputStream[i]); } copy.close(); output.flush(); output.close(); (6) Output the merged pdf through web browser response.reset(); response.setContentType("application/pdf"); response.setContentLength(fileData.length); response.setHeader("Content-Disposition", "inline;filename=\""+ filename + "\";"); Now merged file with editable fields are displayed through web successfully  I will provided a small example model to explain how I did it: ========================================== . method1 private static InputStream method1( String rename_i, String col1, String col2, //... ... String colN ) { try { ByteArrayOutputStream baos = new ByteArrayOutputStream(); PdfReader reader = null; PdfStamper stamp = null; reader = new PdfReader(ORG_PDF_PATH + "template.pdf"); PdfDictionary acro = (PdfDictionary) PdfReader.getPdfObject(reader.getCatalog().get(PdfName.ACROFORM)); acro.remove(new PdfName("XFA")); //filling in the form stamp = new PdfStamper(reader, baos); AcroFields form1 = stamp.getAcroFields(); form1.renameField("form1[0].#subform[0].col1[0]", "form1[0].#subform[0].col1_" + rename_i); form1.renameField("form1[0].#subform[0].col2[0]", "form1[0].#subform[0].col2_" + rename_i); //... ... form1.renameField("form1[0].#subform[0].colN[0]", "form1[0].#subform[0].colN_" + rename_i); form1.setField("col1_" + rename_i, col1); form1.setField("col2_" + rename_i, col2); //... ... form1.setField("colN_" + rename_i, colN ); stamp.setFormFlattening(true); stamp.partialFormFlattening("col1_" + rename_i); stamp.partialFormFlattening("col2_" + rename_i); //... ... stamp.partialFormFlattening("colN_" + rename_i); stamp.close(); return new ByteArrayInputStream(baos.toByteArray()); } catch(Exception e) { System.err.println("Error msg: " + e.getMessage() + "\n"); } return null; } . method 2 public synchronized static void method2( HttpServletResponse res, ServletOutputStream responseOut, String names[] ) { String sql = ""; String name = ""; String col1 = ""; String col2 = ""; //... ... String colN = ""; PdfReader[] pdfs_arr = new PdfReader[names.length]; try { for(int i=0 ; i< names.length; i++) { name = names[i]; //col1 = DBAction to retireve value //col2 = DBAction to retrieve value //... //colN = DBAction to retrieve value pdfs_arr[i] = new PdfReader(method1( i + "", col1, col2, //..., colN ) ); } //end of for-loop } catch(Exception e) { System.out.println("\n\nPrint merged pdf error: " + e.getMessage() + "\n"); } long milisec = Calendar.getInstance().getTimeInMillis(); String filename = "temporal" + milisec + ".pdf"; try { File file = new File(filename); OutputStream output = new FileOutputStream(file); PdfCopyFields copy = new PdfCopyFields(new FileOutputStream(filename)); for (int i=0; i< pdfs_arr.length; i++) { copy.addDocument(pdfs_arr[i]); } copy.close(); output.flush(); output.close(); byte[] fileData = new byte[(int)file.length()]; FileInputStream fis = new FileInputStream(file); fis.read(fileData); res.reset(); res.setContentType("application/pdf"); res.setContentLength(fileData.length); res.setHeader("Content-Disposition", "inline;filename=\""+ filename + "\";"); responseOut.write(fileData); responseOut.flush(); responseOut.close(); responseOut.flush(); responseOut.close(); file.delete(); fis.close(); } catch(Exception e) { System.out.println("Any error: " + e.getMessage() + "\n"); } } |
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