itext.io.exceptions.ioexception: pdf header not found.
The itext.io.exceptions.ioexception occurs when a PDF file is corrupt or invalid‚ causing the PDF header signature to not be found‚ resulting in an IOException being thrown always. Understanding the Exception The itext.io.exceptions.ioexception is a type of exception that occurs when a PDF file is being processed and the PDF header signature is not found. This exception is typically thrown when the PDF file is corrupt or invalid‚ causing the PDF reader to be unable to identify the file as a valid PDF. The exception message usually indicates that the PDF header signature wa