01-22-2012, 11:37 AM
As I can't imagine your specific case (type of the contents, what users will try to modify it, and what they may want to modify) I will suggest you the following easy way for raster conversion, that will prevent easy copying, and modifying especially of the text contents.
1. Make your PDF
2. Open it in Adobe Acrobat (the full one, not "reader' only)
3. Export the PDF to a raster images (File/Export/Image/PNG) giving a proper resolution, at least 300 dpi if you want the prints to look nice)
4. Close the file and create a new PDF using these exported images (there are several ways to reach this option in Adobe Acrobat).
This doesn't protect from printing!
1. Make your PDF
2. Open it in Adobe Acrobat (the full one, not "reader' only)
3. Export the PDF to a raster images (File/Export/Image/PNG) giving a proper resolution, at least 300 dpi if you want the prints to look nice)
4. Close the file and create a new PDF using these exported images (there are several ways to reach this option in Adobe Acrobat).
This doesn't protect from printing!