PdfTools.Pdf Namespace

Classes

	Class	Description
	CertificationSignature	A document certification (MDP) signature that certifies the document These signatures are also called Document Modification Detection and Prevention (MDP) signatures. This type of signature enables the detection of rejected changes specified by the author.
	Conformance	The conformance of a PDF document
	Document	The PDF document PDF documents are either opened using Open(Stream, String) or the result of an operation, e.g. of PDF optimization (see OptimizeDocument(Document, Stream, Profile, OutputOptions)).
	DocumentSignature	A document signature that signs the document Document signatures are sometimes also called approval signatures. This type of signature lets you verify the integrity of the signed part of the document and authenticate the signer’s identity.
	DocumentTimestamp	A document time-stamp signature that time-stamps the document This type of signature provides evidence that the document existed at a specific time and protects the document’s integrity.
	Encryption	The parameters to encrypt PDF documents PDF document can be encrypted to protect content from unauthorized access. The encryption process applies encryption to all streams (e.g. images) and strings, but not to other items in the PDF document. This means the structure of the PDF document is accessible, but the content of its pages is encrypted. The standard security handler allows access permissions and up to two passwords to be specified for a document: A user password (see UserPassword) and an owner password (see OwnerPassword). The following list shows the four possible combinations of passwords and how an application processing such a PDF document behaves: No user password, no owner password (no encryption): Everyone can read, i.e. no password required to open the document. Everyone can change security settings. No user password, owner password: Everyone can read, i.e. no password required to open the document. Access permissions are restricted (unless the owner password is provided). Owner password required to change security settings. User password, no owner password: User password required to read. All access permissions are granted. User password, owner password: User or owner password required to read. Access permissions are restricted (unless the owner password is provided). Owner password required to change security settings. Since encryption is not allowed by the PDF/A ISO standards, PDF/A documents must not be encrypted.
	Metadata	Represents the metadata of a document or an object in a document. For document level metadata, all changes are reflected in both, XMP metadata and document info dictionary depending on the conformance of the document.
	OutputOptions	The parameters for document-level features of output PDFs Output options are used in many operations that create PDF documents.
	Revision	The document revision
	Signature	A base class for certain signature types
	SignatureField	A digital signature field
	SignatureFieldList
	SignedSignatureField	A base class for signature fields that have been signed The existence of a signed signature field does not imply that the signature is valid. The signature is not validated at all.
	UnsignedSignatureField	An unsigned signature field An unsigned signature field that can be signed. The purpose of the signature field is to indicate that the document should be signed and to define the page and position where the visual appearance of the signature should be placed. This is especially useful for forms and contracts that have dedicated spaces for signatures.

Enumerations

	Enumeration	Description
	ConformancePdfALevel	The PDF/A conformance level that defines the requirements on the quality of the document's content.
	MdpPermissions
	Permission	The permissions allowed by a PDF document See Permissions to read the permissions of a PDF document. See Encryption to set the permissions when encrypting a PDF document.
	XfaType	The XFA type of a PDF document See Xfa to get the XFA type of a PDF document.