The PDF format offers two encryption types, both of which are supported by the PdfCrypter:

Encryption with password protection

When encrypting a PDF document with password protection, rights are grants which apply in equal measure to all recipients. The recipient decides whether the PDF document may be read, printed, processed, added to or copied. Here it is possible, in addition to the owner password with which all the granted rights can be managed, to optionally specify a password for opening the document.

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Encryption with certification


This type of encryption is the most secure way of protecting your PDF documents as each document is encrypted for one or more recipients and only these are able to open such documents. Furthermore, the author of the document also has the option of deciding individually for each recipient whether the file may be printed, processed, added to or copied.

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