Published at LXer:
If you've ever used fillable PDF forms, you've probably noticed that you can't save a copy of the form once it has been filled in. Being sneaky, you probably might try to print the form to a file (PostScript) and then use ps2pdf to convert it to a PDF. But, this doesn't work either, because ghostscript gives you an error saying the file can't be redistilled. This article shows you how to protect your own PostScript using the same technique.
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