pdftron.SDF Namespace |
Classes to work with Structured Document Format(SDF) and low-level Carousel Object System(COS).
Classes| Class | Description | |
|---|---|---|
  | DictIterator |
DictIterator is used to traverse key-value pairs in a dictionary.
|
| DocSnapshot |
Represents a state of the document.
|
| NameTree |
A NameTree is a common data structure in PDF. See section 3.8.5 'Name Trees' in PDF Reference Manual for
more details.
A name tree serves a similar purpose to a dictionary - associating keys and values - but by different means.
NameTrees allow efficient storage of very large association collections(string/Obj* maps). A NameTree can
have many more entries than a SDF/Cos dictionary can.
NameTrees use SDF/Cos-style strings(not null-terminated C strings), which may use Unicode encoding etc.
|
| NameTreeIterator |
NameTreeIterator is used to traverse key/value pairs in a NameTree.
|
| NumberTree |
A NumberTree is a common data structure in PDF. See section 3.8.6 'Number Trees' in PDF Reference Manual for
more details.
A number tree serves a similar purpose to a dictionary - associating keys and values - but by different
means. NumberTrees allow efficient storage of very large association collections(number/Obj* maps). A
NumberTree can have many more entries than a SDF/Cos dictionary can.
|
| NumberTreeIterator |
NumberTreeIterator is used to traverse key/value pairs in a NumberTree.
|
| Obj |
Obj is a concrete class for all SDF/Cos objects. Obj hierarchy implements the composite design pattern. As a
result, you can invoke a member function of any 'derived' object through Obj interface. If the member
function is not supported (e.g. if you invoke Obj::GetNumber() on a boolean object) an Exception will be
thrown.
You can use GetType() or obl.Is???() member functions to find out type-information at run time, however most
of the time the type can be inferred from the PDF specification. Therefore when you call Doc::GetTrailer()
you can assume that returned object is a dictionary. If there is any ambiguity use Is???() methods.
Objects can't be shared across documents, however you can use Doc::ImportObj() to copy objects from one
document to another.
Objects can be shared within a document provided that they are created as indirect. Indirect objects are the
ones that are referenced in cross-reference table. To create an object as indirect use
Doc::CreateIndirect???()(where ? is the Object type).
|
| ObjSet |
ObjSet is a lightweight container that can hold a collection of SDF objects.
|
| ResultSnapshot |
Represents a transition between two document states.
|
| SDFDoc | SDFDoc is a low-level document representing a graph of SDF.Obj nodes that can be used to build higher-level document models such as PDF(Portable Document Format) or FDF(Forms Document Format). SDF Doc brings together document security, document utility methods, and all SDF objects. |
| SecurityHandler | Standard Security Handler is a built-in password-based security handler. |
| UndoManager |
Undo-redo interface; one-to-one mapped to document
|
Interfaces| Interface | Description | |
|---|---|---|
 | ISignatureHandler |
An interface for SignatureHandler. SignatureHandler instances are responsible for defining the digest and
cipher algorithms to sign and/or verify a PDF document. SignatureHandlers are added to PDFDoc instances by
calling the PDFDoc.AddSignatureHandler method.
|
Enumerations| Enumeration | Description | |
|---|---|---|
 | ObjType |
Specifies the type of Obj.
|
| SDFDocSaveOptions |
SDFDoc save options.
|
| SecurityHandlerAlgorithmType |
Secutiry handler algorithm type
|
| SecurityHandlerPermission |
Secutiry handler permission type
|