Best PDF library

I will be generating PDFs. Which library is the most good?

I have examined so far:

http://www.lowagie.com/iText/
http://libharu.sourceforge.net/

What do you think?

>>18
hardly copypasta
If you're saying you can't copypasta things out of the PDF, you can.
  And if you want to change the document, why not download the source of it instead and change that!  Most serious experts publish their sources and only offer PDFs for poor Windows users.
Once the file enters my computer, I view it THE WAY I WANT because it's my fucking file.
Not if you've only licensed it.