tayanumber.blogg.se - .pdf signer

#.pdf signer pdf#

If a document is protected by an Owner password, it has to be supplied with the request for SignServer to sign the document. It can be used for reading an encrypted document and making changes to a document that has permissions.

Owner password: Also sometimes referred to as "permission password" or "security restriction password".

Can be used for reading an encrypted document.

User password: Also sometimes referred to as "open password" or "document password".

There are two different types of passwords:

#.pdf signer pdf#

PDF documents can optionally be protected by a password. The PDF Signer can also be configured to enforce that certain PDF permissions are not available in the signed document and/or that certain permissions should be removed. The topic of long-term signature preservation for archival purposes is a large one and is discussed to be implemented in future versions of SignServer). (Though it will not guarantee long-term signature preservation.

Embedding the CRL or OCSP response with the package will help validate the signature even after the signer's certificate is expired. It is strongly advised to apply a timestamp to a signature, and the TSA module can be used for this purpose.Īlso, the CRL or OCSP Response of the signer's certificate can be embedded inside the signature package. If the signature is not timestamped then the signature time specified in the signature properties is not considered to be trusted. Timestamping is used to prove that the document was signed before the time specified by the timestamp token. If the signature is timestamped, it can be viewed through signature properties in Adobe Acrobat Reader. PDF Signer can also apply a timestamp to a signature. For visible signatures, properties such as custom signature image, signature rectangle, page at which the signature rectangle will be drawn, and so on can be specified (see Worker Properties). In contrast, when applying an invisible signature, the signature properties are accessed via menu items. Clicking the signature image will display the properties of the signature (Adobe Acrobat Reader). The difference is that when a visible signature is applied to a document, a signature image (in the shape of a rectangle) is placed at the specified place in the document. Both visible and invisible signatures serve the same purpose of signing a document, and technically are equivalent in that sense. The signer supports the addition of visible or invisible signatures. The main purpose of the PDF signer is to add digital signatures to PDF documents. The PDF signer has the class name: .PDFSigner.