| AppendedPage | Represents an appended page. |
| Attachment | Represents a Attachments present in PDFDocument |
| ByteRange | This class represents the signed content byte range in a PDF document. |
| EncryptionInfo | Represents security information of the PDF document. |
| Extracted3DImageData | Represents a Extracted3DImageData class. |
| ExtractedImageData | Represents the extracted image from the document. |
| FontInformation | Represents the font information present in a PDF document, this class is used to get the font file name, encoding, embed and font type information. |
| ImageInformation | Represents image's information of an image in the document. |
| ImageInformation3D | Represents image's information of an 3D image in the document. |
| ImportedAction | Represents an imported action. |
| ImportedDestination | Represents an imported destination |
| ImportedPage | Represents an imported page. |
| ImportedPageArea | Represents an imported pages area. |
| ImportedPageContents | Represents the contents used by an the ImportedPageData class. |
| ImportedPageData | Represents a Page Element containing the data of an imported page from a PDF document. |
| IncrementalSignatureAppearance | The IncrementalSignatureAppearance class provides options to customize the apperance of visible signature fields, such as font, text visibility, reason to sign and location at the time of singing. |
| IncrementalUpdateDocument | The IncrementalUpdateDocument class updates the PDF document incrementally by appending the changes after the end of the file. |
| IncrementalUpdateFormField | Represents incremental update document formfield. |
| IncrementalUpdateFormFieldList | Represents incremental update document form field list that contains the list of IncrementalUpdateFormField . |
| LtvEmbeddingOption | The LtvEmbeddingOption uses to specify the options for adding the PAdES-LTV profile to a PDF document. |
| MergeDocument | Represents a document that can merge and append other documents. |
| MergeOptions | Represents options for merging PDF documents. |
| MergerException | The exception that is thrown for a DynamicPDF Merger error. |
| PdfAnnotation | Represents an annotation resource. |
| PdfDocument | Represents a PDF document for import. |
| PdfNoteAnnotation | Represents a Note Annotation from an imported PDF document. |
| PdfOutline | Represents an imported outline. |
| PdfOutlineList | Represents a list of outlines from an imported PDF document. |
| PdfPage | Represents a page from an imported PDF document. |
| PdfPageList | Represents a collection of PDF pages. |
| PdfParsingException | The exception that is thrown for a PDF parsing error. |
| PdfSecurityException | The exception that is thrown for a PDF security error. |
| SecurityStore | Represents the Document Security Store (DSS) appended to the PDF document containing security,
Validation Related Information (VRI) and indirect references to the values of validation data
of all signatures present in the document. |
| SignatureValidationItem | This class gives the signature validation details that includes certificate details, revocation lists if any present and time stamp etc. |
| StreamOrder | Represents text extraction in stream order. |
| TextExtractionOrder | Represents text extraction order. |
| VisibleOrder | Represents text extraction in visible order. |
| VisibleOrderWithSpace | Represents text extraction in visible order and space presrved. |