Þó þetta sé grín hjá Kalla þá er þetta í raun ekki svo vitlaust..

Það eru til fullt af PDF prenturum (prentaradriver sem prentar út í PDF skjal en ekki á prentara). Þessir PDF prentarar bjóða yfirleitt upp á stillingar til að læsa skjölunum sem þeir búa til.
Ég hef t.d. notað þennan -->
http://www.pdfforge.org/pdfcreatorKey Features:
* Create PDFs from any program that is able to print * Security: Encrypt PDFs and protect them from being opened, printed etc * New: Digitally sign your PDFs to ensure that you are the author and the file has not been modified
* New: Create PDF/A files for long term archives
* Send generated files via eMail
* Create more than just PDFs: PNG, JPG, TIFF, BMP, PCX, PS, EPS
* AutoSave files to folders and filenames based on Tags like Username, Computername, Date, Time etc.
* Merge multiple files into one PDF
* Easy Install: Just say what you want and everything is installed
* Terminal Server: PDFCreator also runs on Terminal Servers without problems
* And the best: PDFCreator is free, even for commercial use! It is Open Source and released under the Terms of the GNU General Public License. * Supports Windows Vista and Windows 7