Adobe Acrobat Trial Limitations?

Hello! I would be very thankful if someone could provide me an information:

The Adobe Acrobat trial is time limited (30 days). Apart from that: Will it function as a full version under normal use or does the trial have further limitations (e.g. a watermarked output).

I want to use Acrobat to create a PDF document of my masters thesis out of OpenOffice-Writer (since the internal pdf creator of OpenOffice is flawed). The document should be used for print (PDF/X) and for the university library (PDF/A).

I can not afford a software license and therefore have to use the Acrobat trial (creating a PDF document of my thesis is the single occasion I want to use it).

Thank you!

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The official adobe information is not very detailed:

http://kb2.adobe.com/cps/195/tn_19549.php