问题
I am looking for a Java tool that can manipulate an existing PDF containing placeholders like ${foo}. I want to generate mail merge documents from that.
I found a lot of solutions with forms but this seems not suitable for me. Currently I generate the PDF with iText but this is a really annoying task to convert existing Word files or similar. I didn't find another solution with iText so far.
I also used JODReports in conjunction with JODConverter but it is necessary to run OpenOffice as a service and the performance is bad.
来源：https://stackoverflow.com/questions/17444459/pdf-manipulation-with-placeholders