Hello Mark,

Mark Storer [[email protected]] wrote:
>Is this other library flattening the form as well?  That can get 
>pricey, computation-wise. Is it appending its changes to the 
>existing PDF, or rewriting everything? Are both Java libraries?
>
Yes, the alternative library is pure Java and does the flattening of the form 
too. I implemented the exact same use-case and they generate an almost 
identical PDF Letter:
 
- create a new empty document in memory
- load PDF part templates i.e. a PDF file that contains only a header part.
- populate and flatten the part templates if needed e.g. fields
- add the populated parts to specific coordinates in the new document
- create tables dynamically with pre-populated form fields
- add the populated tables to specific coordinates in the new document
- add dynamic text to the new document e.g. date, preamble, specific notes, etc.
 
I will post the full iText code that shows the use-case (and workload) I used 
for doing this micro-benchmarking. 
 
Best regards,
Giovanni

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