3-Heightsâ¢ PDF Security Shell - PDF Tools AG

More documents

Recommendations

Info

3-Heights PDF Security Shell, Version 4.2 Page 14 of 35 July 8, 2013 How to Encrypt a PDF Document If either of the passwords or permission flags are set, the document is encrypted. If only a user password is set, but no owner password and no permission flags, the owner password is equal to the user password and all permissions are granted. Example: Create a document where only low resolution printing is allowed. pdfsecure –o ownerpassword –p p input.pdf output.pdf Example: Create a document where only low resolution printing is allowed and the user is prompted for a password upon opening the document. The user must therefore know either the user or the owner password. pdfsecure –o ownerpassword –u userpassword –p p input.pdf output.pdf Example: To create a non-encrypted document, do not set any of the switches -o, -u, -p. pdfsecure input.pdf output.pdf PDF Tools AG – Premium PDF Technology
3-Heights PDF Security Shell, Version 4.2 Page 15 of 35 July 8, 2013 5.4 Digital Signatures Overview Digital signature is large and slightly complex topic. This manual gives a brief, general overview about digital signatures and describes how the 3-Heights PDF Security Shell is used to apply them. It does however not describe all the details that are involved when it comes to for example meet the prerequisite for applying a Qualified Electronic Signature. Terminology Digital Signature is a cryptographic technique of calculating a number (a digital signature) for a message. Creating a digital signature requires a private key from a certificate. Validating a digital signature and its authorship requires a public key. Digital Signature is a technical term. Electronic Signature is a set of electronic data that is merged or linked to other electronic data in order to authenticate it. Electronic Signatures can be created by means of a digital signature or other techniques. Electronic Signature is a legal term. Table: Abbreviations CA CMS CRL CSP HSM OCSP PKCS QES TSA TSP Certification Authority Cryptographic Message Syntax Certificate Revocation List Cryptographic Service Provider Hardware Security Module Online Certificate Status Protocol Public Key Cryptography Standards Qualified Electronic Signature Time Stamp Authority Time Stamp Protocol Why Digitally Signing? The idea of applying a digital signature in PDF is very similar to a handwritten signature: A person reads a document and signs it with its name. In addition to the name, the signature can contain further optional information, such as the date and location. A valid electronic signature is a section of data that can be used to: Ensure the integrity of the document Authenticate the signer of the document To digitally sign a document, a certificate must be selected. How to view and access a certificate is described in the chapter Certificates. The digital signature consists of two parts: A signature type related part: This part consists of the required objects for the selected signature, which vary on the signature type (Document Signature, MDP Signature, see table below). Information such as name of the signer, reason, date, location is stored here. The signature may PDF Tools AG – Premium PDF Technology
Page 1 and 2: 3-Heights PDF Security Shell Versio
Page 3 and 4: 3-Heights PDF Security Shell, Versi
Page 13: 3-Heights PDF Security Shell, Versi
Page 35: 3-Heights PDF Security Shell, Versi

3-Heightsâ¢ PDF Security Shell - PDF Tools AG

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?

3-Heightsâ¢ PDF Security Shell - PDF Tools AG