I am having issues with ASPOSE.PDF for Java getting the concatenate feature to work properly. I have it coded like the sample in your documentation, but it keeps throwing an error when I get to the line for add the pages to the primary document. I am using a inputstream which the PDF file data and I am able to get the page information prior to joining the two files together, but it just fails. Here is the message that I get:
main::com::aspose::pdf::internal::ms::System::z87=HASH(0xa77e004)
I do get the page info before this so I know it is seeing the data, but as soon as I add the line
pdfDocument1.getPages().add(pdfDocument2.getPages()); it will throw the above error at me. Here is the full code for review
public String doPdfFileCombine (String Content1, String Content2) throws Exception{
// Convert the string into an array of bytes and pass it into a new memory stream
InputStream pdfStream1 = new ByteArrayInputStream(Base64.decodeBase64(Content1));
// Open the first document from InputStream
com.aspose.pdf.Document pdfDocument1 = new com.aspose.pdf.Document(pdfStream1);
// Convert the second string into an array of bytes and pass it into a new memory stream
InputStream pdfStream2 = new ByteArrayInputStream(Base64.decodeBase64(Content2));
// Open the second document from InputStream
com.aspose.pdf.Document pdfDocument2 = new com.aspose.pdf.Document(pdfStream2);
// Create output stream
ByteArrayOutputStream outStream1 = new ByteArrayOutputStream();
// Create output stream
ByteArrayOutputStream outStream2 = new ByteArrayOutputStream();
// Save Files so you can getPages for concating
pdfDocument1.save(outStream1, SaveFormat.Pdf);
pdfDocument2.save(outStream2, SaveFormat.Pdf);
String Test = "Page Count : " + pdfDocument1.getPages().size() + "Page Count : " + pdfDocument2.getPages().size();
// Add pages of second document to the first
pdfDocument1.getPages().add(pdfDocument2.getPages());
// Save concatenated output file
pdfDocument1.save(outStream1, SaveFormat.Pdf);
Test += "\n Page Count2 : " + pdfDocument1.getPages().size() + "Page Count2 : " + pdfDocument2.getPages().size();
// Convert outStream data to Base64 String so we can pass back to Perl
//String outString = new String(Base64.encodeBase64Chunked(outStream1));
return Test;
}
Side note on this Issue we are currently using the ASPOSE.Words software to convert RTF to Doc and PDF file which is where the Content input is coming from. What we are trying to do is add additional pdf files to the converted RTF->PDF data we are currently generating. The key though is we want all the Table of Content links to still work after concatenating the files together. Is this even going to do that, we are using a different software currently that strip all the hyperlink data when combining multiple PDFs. Any info and assistance would be appreciated.