I have a Java method that generates PDFs from HTML templates using the iText 7 library. The method works fine for generating a small number of PDFs, but when I try to run this code with 10 threads and generating a large number (e.g., 1000), I encounter an out-of-memory error.Heap size increasing upto 1GB.
And also i am using a base64 String of Signature and Letterhead images.