java - Modifying an Existing PDF without creating an new pdf file

Question

Using iText, I am wanting to open a PDF file, add some more pages with text to it, and then close it. I have found some questions like this on here, but all require creating a new PDF file. Is there any way to read in the pdf file and modify it and then overwrite the original?

Answer 1

Of course you can create a new pdf file, and afterwards overwriting the old file with the new one.

Commons Apache File Util

forceDelete(oldPdf)
moveFile(newPdf, oldPdf)