I am using MakeSignature.signDetached
method to add digital signature in PDF.
I do sign the PDF in bulk, it works, but after each method call I have to write Thread.Sleep(500)
in order to continue the process, if I do not use Thread.sleep(500)
I have to replug the usb dongle.
This process takes more time to process hundreds of PDFs.
In a nutshell, I would like to know:
Thread.Sleep
statement?There's a tiny smart card in your USB dongle. Many smart cards have a built-in limitation that allows you to create only one signature per second. That's why you have to use Thread.sleep(500)
.
You can't improve the performance using code. If you want to improve the performance, you need to change your hardware. For instance: replace your USB dongle with a Hardware Security Module (HSM).
This is not a question about (or for) iText. This is a question you should ask the provider of your security hardware. Buy hardware that is suited to process hundreds of PDFs instead of using a USB dongle that is created to sign documents manually, not in batch.