// CkPdf.h: interface for the CkPdf class.
//
//////////////////////////////////////////////////////////////////////

// This header is generated for Chilkat 11.2.0

#define _CkVersion 11.2.0

#ifndef _CkPdf_H
#define _CkPdf_H
	
#include "chilkatDefs.h"
#include "CkString.h"
#include "CkClassWithCallbacks.h"

class CkJsonObject;
class CkBinData;
class CkCert;
class CkTask;
class CkStringBuilder;
class CkHttp;
class CkPrivateKey;
class CkBaseProgress;



#if !defined(__sun__) && !defined(__sun)
#pragma pack (push, 8)
#endif


#undef Copy

// CLASS: CkPdf
class CK_VISIBLE_PUBLIC CkPdf  : public CkClassWithCallbacks
{
    private:

	// Don't allow assignment or copying these objects.
	CkPdf(const CkPdf &);
	CkPdf &operator=(const CkPdf &);

    public:
	CkPdf(void);
	virtual ~CkPdf(void);

	static CkPdf *createNew(void);
	static CkPdf *createNew2(int progLang);
	void CK_VISIBLE_PRIVATE inject(void *impl);

	// May be called when finished with the object to free/dispose of any
	// internal resources held by the object. 
	void dispose(void);

	
		
	CkBaseProgress *get_EventCallbackObject(void) const;
	void put_EventCallbackObject(CkBaseProgress *progress);


	// BEGIN PUBLIC INTERFACE

	// ----------------------
	// Properties
	// ----------------------
	// Returns true if the currently open PDF has a certification signature.
	// 
	// PDF defines two types of signatures: approval and certification.
	// 
	// The differences are as follows:
	//     * Approval: There can be any number of approval signatures in a document.
	//     * Certification: There can be only one certification signature and it must
	//     be the first one in a document.
	// 
	bool get_HasCertificationSig(void);

	// The number of embedded files present in the currently open PDF.
	int get_NumEmbeddedFiles(void);

	// The number of pages in the currently open PDF.
	int get_NumPages(void);

	// The number of digital signatures present in the currently open PDF.
	int get_NumSignatures(void);

	// The PDF owner password, if required.
	void get_OwnerPassword(CkString &str);
	// The PDF owner password, if required.
	const char *ownerPassword(void);
	// The PDF owner password, if required.
	void put_OwnerPassword(const char *newVal);

	// Defaults to 15000. This property should generally be left unchanged. If signing
	// fails and the following message is in the LastErrorText: Did not allocate enough
	// space for the PDF signature. , then you should increase this value. The actual
	// signature size will be noted in the LastErrorText, and you can use that value to
	// set an allocation size that is somewhat larger.
	int get_SigAllocateSize(void);
	// Defaults to 15000. This property should generally be left unchanged. If signing
	// fails and the following message is in the LastErrorText: Did not allocate enough
	// space for the PDF signature. , then you should increase this value. The actual
	// signature size will be noted in the LastErrorText, and you can use that value to
	// set an allocation size that is somewhat larger.
	void put_SigAllocateSize(int newVal);

	// This is a catch-all property to be used for uncommon needs. This property
	// defaults to the empty string. It can be set to a list of one or more of the
	// following comma separated keywords:
	//     * WriteStandardXref - When writing the PDF, write the cross reference
	//     section in standard format if possible. (The standard format is the older
	//     non-compressed format.)
	//     * NO_VERIFY_CERT_SIGNATURES - When countersigning a PDF (i.e. adding a new
	//     signature to a PDF that already contains one or more signatures), Chilkat will
	//     automatically validate the existing signatures and their certificates. (The
	//     signing certificates are typically embedded within a signature.) If any of these
	//     validations fail, the new signature is not added. Sometimes, an existing
	//     signature is validated, but the certs in the chain of authentication, such as
	//     issuer certs or root CA certs, are not included and not available to check. In
	//     this case, you can add the NO_VERIFY_CERT_SIGNATURES to skip the existing
	//     signature certificate validations.
	void get_UncommonOptions(CkString &str);
	// This is a catch-all property to be used for uncommon needs. This property
	// defaults to the empty string. It can be set to a list of one or more of the
	// following comma separated keywords:
	//     * WriteStandardXref - When writing the PDF, write the cross reference
	//     section in standard format if possible. (The standard format is the older
	//     non-compressed format.)
	//     * NO_VERIFY_CERT_SIGNATURES - When countersigning a PDF (i.e. adding a new
	//     signature to a PDF that already contains one or more signatures), Chilkat will
	//     automatically validate the existing signatures and their certificates. (The
	//     signing certificates are typically embedded within a signature.) If any of these
	//     validations fail, the new signature is not added. Sometimes, an existing
	//     signature is validated, but the certs in the chain of authentication, such as
	//     issuer certs or root CA certs, are not included and not available to check. In
	//     this case, you can add the NO_VERIFY_CERT_SIGNATURES to skip the existing
	//     signature certificate validations.
	const char *uncommonOptions(void);
	// This is a catch-all property to be used for uncommon needs. This property
	// defaults to the empty string. It can be set to a list of one or more of the
	// following comma separated keywords:
	//     * WriteStandardXref - When writing the PDF, write the cross reference
	//     section in standard format if possible. (The standard format is the older
	//     non-compressed format.)
	//     * NO_VERIFY_CERT_SIGNATURES - When countersigning a PDF (i.e. adding a new
	//     signature to a PDF that already contains one or more signatures), Chilkat will
	//     automatically validate the existing signatures and their certificates. (The
	//     signing certificates are typically embedded within a signature.) If any of these
	//     validations fail, the new signature is not added. Sometimes, an existing
	//     signature is validated, but the certs in the chain of authentication, such as
	//     issuer certs or root CA certs, are not included and not available to check. In
	//     this case, you can add the NO_VERIFY_CERT_SIGNATURES to skip the existing
	//     signature certificate validations.
	void put_UncommonOptions(const char *newVal);

	// The PDF user password, if required.
	void get_UserPassword(CkString &str);
	// The PDF user password, if required.
	const char *userPassword(void);
	// The PDF user password, if required.
	void put_UserPassword(const char *newVal);



	// ----------------------
	// Methods
	// ----------------------
	// Embeds one or more files in a PDF.
	// 
	// The json specifies the files to be attached to the PDF. See the linked example
	// below.
	// 
	// The json is a JSON object containing an array of JSON objects, where each object
	// can contain the following members.
	//     * localFilePath: (required) The local file to be embedded in the PDF.
	//     * description: (required) It is a short description of the embedded file.
	//     * subType: (optional) Specifies the file type, such as application/xml,
	//     text/plain, etc. If not specified, then Chilkat will automatically choose a
	//     subType based on the file extension.
	//     * embeddedFilename: (optional) Specifies the name of the file to be used
	//     within the PDF in the desire is for it to be different than the filename in the
	//     local filesystem. If not present, then the filename part of the localFilePath.
	//     * AFRelationship: (optional starting in v11.1.0) Specifies specify the
	//     nature of the relationship of the embedded file. Possible values are Source
	//     , Data , Alternative , Supplement , and Unspecified . If unset, the default
	//     is Alternative .
	// 
	// If successful, the updated PDF with embedded files is written to outFilePath.
	// 
	bool AddEmbeddedFiles(CkJsonObject &json, const char *outFilePath);


	// The same as AddEmbeddedFiles, but writes the resultant PDF to the bd.
	bool AddEmbeddedFilesBd(CkJsonObject &json, CkBinData &bd);


	// Adds a certificate to be used for PDF signing. To sign with more than one
	// certificate, call AddSigningCert once per certificate.
	// 
	// Note: This method is used to provide the ability to sign once with multiple
	// certificates. This is different than signing with one certificate, and then
	// signing again with a different certificate.
	// 
	bool AddSigningCert(CkCert &cert);


	// Adds LTV verification information to the PDF, and saves the updated PDF to outFilePath.
	// This create or update a DSS (Document Security Store) in the PDF with the needed
	// certificates, OCSP responses, and CRL information.
	// 
	// Pass an empty jsonOptions. The jsonOptions exists as a placeholder for adding options if
	// needed.
	// 
	bool AddVerificationInfo(CkJsonObject &jsonOptions, const char *outFilePath);

	// Adds LTV verification information to the PDF, and saves the updated PDF to outFilePath.
	// This create or update a DSS (Document Security Store) in the PDF with the needed
	// certificates, OCSP responses, and CRL information.
	// 
	// Pass an empty jsonOptions. The jsonOptions exists as a placeholder for adding options if
	// needed.
	// 
	CkTask *AddVerificationInfoAsync(CkJsonObject &jsonOptions, const char *outFilePath);


	// Gets the contents of the PDF's Document Security Store (/DSS) if it exists.
	// Returns the information in JSON format (in json). If there is no /DSS then an
	// empty JSON document {} is returned in json.
	bool GetDss(CkJsonObject &json);


	// Loads the bd with the contents of the Nth embedded file contained in the
	// currently open PDF. The index specifies the index of the embedded file. The 1st
	// embedded file is at index 0. See the example linked below.
	bool GetEmbeddedFileBd(int index, CkBinData &bd);


	// Gets information about the Nth embedded file contained in the currently open
	// PDF. The index specifies the index of the embedded file. The 1st embedded file is
	// at index 0. The json is filled with information about the embedded file. See the
	// example linked below.
	bool GetEmbeddedFileInfo(int index, CkJsonObject &json);


	// Provides information about what transpired in the last method called. For many
	// methods, there is no information. For some methods, details about what
	// transpired can be obtained via LastJsonData. For example, after calling a method
	// to verify a signature, the LastJsonData will return JSON with details about the
	// algorithms used for signature verification.
	void GetLastJsonData(CkJsonObject &json);


	// If the PDF contains Metadata, then loads the Metadata XML into sb and returns
	// true. If the PDF does not contain Metadata, then clears sb and returns
	// false.
	bool GetMetadata(CkStringBuilder &sb);


	// Returns the CMS signature for the Nth signature contained in the PDF. The 1st
	// signature is at index 0.
	bool GetSignatureContent(int index, CkBinData &bd);


	// This method retrieves the signer certificate after calling VerifySignature . Use
	// the same index for index as the one passed to VerifySignature. If successful and
	// the signer certificate is fully available, cert will contain the certificate.
	bool GetSignerCert(int index, CkCert &cert);


	// Returns JSON containing the name of each unsigned signature field found in the
	// PDF.
	bool GetUnsignedSigFields(CkJsonObject &json);


	// This method is deprecated. Call GetLastJsonData instead.
	// 
	// Provides information about what transpired in the last method called. For many
	// methods, there is no information. For some methods, details about what
	// transpired can be obtained via LastJsonData. For example, after calling a method
	// to verify a signature, the LastJsonData will return JSON with details about the
	// algorithms used for signature verification.
	// 
	// The caller is responsible for deleting the object returned by this method.
	CkJsonObject *LastJsonData(void);


	// Loads the PDF file contained in pdfData.
	bool LoadBd(CkBinData &pdfData);


	// Load a PDF file into this object in memory.
	bool LoadFile(const char *filePath);


	// Sets the HTTP object to be used to communicate with the timestamp authority
	// (TSA) server for cases where long term validation (LTV) of signatures is
	// desired. The http is used to send the requests, and it allows for connection
	// related settings and timeouts to be set. For example, if HTTP or SOCKS proxies
	// are required, these features can be specified on the http.
	// 
	// The http is also used to send OCSP requests to store OCSP responses in the PDF's
	// document security store (DSS).
	// 
	void SetHttpObj(CkHttp &http);


	// Provides an optional JPG image to be included in the signature appearance. The
	// JPG data is passed in jpgData.
	// 
	// Note: JPG images must use the BaseLine format and not the Progressive format.
	// (Programs typically save JPEG's using the BaseLine format as default.)
	// 
	bool SetSignatureJpeg(CkBinData &jpgData);


	// Specifies a certificate to be used when signing the PDF. Signing requires both a
	// certificate and private key. In this case, the private key is implicitly
	// specified if the certificate originated from a PFX that contains the
	// corresponding private key, or if on a Windows-based computer where the
	// certificate and corresponding private key are pre-installed.
	bool SetSigningCert(CkCert &cert);


	// Specifies a digital certificate and private key to be used for signing the PDF.
	bool SetSigningCert2(CkCert &cert, CkPrivateKey &privateKey);


	// Signs the open PDF and if successful writes the signed PDF to the ARG3. The jsonOptions
	// contains information and instructions about the signature. See the examples
	// below for more detailed information about the JSON options listed here.
	// 
	// Summary of PDF Signing Options
	//     * appearance.fillUnsignedSignatureField - Can be set to true) to tell
	//     Chilkat to sign an existing unsigned signature field. Chilkat will automatically
	//     scale the visual appearance (text + graphics) to fit the pre-existing signature
	//     field. When fillUnsignedSignatureField is specified, it is not necessary to set
	//     appearance.x, appearance.y, appearance.fontScale, etc.
	// 
	//     Starting in v9.5.0.90, the unsignedSignatureField option (see below) can be
	//     used to specify the unsigned signature field to be used. Otherwise, the 1st
	//     available unsigned field is used.
	// 
	//     See PDF Unsigned Signature Fields for more information.
	// 
	//     * appearance.fontScale - The font scale (in pts) to be used, such as 10.0 .
	//     * appearance.height - Optional to specify the exact height of the visible
	//     signature rectangle in points, where 72 points equals 1 inch. If the
	//     appearance.height is set, then appearance.width should be set to auto (or
	//     left unset). Chilkat will compute the font scale to achieve the desired
	//     rectangle height, and the resulting width will depend on the text.
	//     * appearance.image - Indicates an image will be included in the signature.
	//     Set to the keyword custom-jpg to use an image set by calling the
	//     SetSignatureJpeg method. Otherwise can be set to one of the following keywords
	//     to indicate a built-in SVG graphic. (These are graphics embedded within the
	//     Chilkat library itself.)
	//         * green-check-grey-circle
	//         * green-check-green-circle
	//         * application-approved
	//         * application-rejected
	//         * document-accepted
	//         * approved
	//         * blue-check-mark
	//         * green-check-mark
	//         * green-check-grey-circle
	//         * red-x-red-circle
	//         * rejected
	//         * result-failure
	//         * result-pass
	//         * signature
	//         * document-check
	//         * document-x
	//         * red-x-grey-circle
	//     * appearance.imageOpacity - Sets the image opacity. Can be an integer from 1
	//     to 100.
	//     * appearance.imagePlacement - Sets the image placment within the signature
	//     rectangle. Can be left , right , or center . Images placed in the center
	//     typically have opacity 50% or less because the text is displayed over the image
	//     (i.e. it is a background image). Images placed left or right are not background
	//     images. The signature rectangle is divided into two sub-rectangles, one for the
	//     image, and one for the text.
	//     * appearance.margin_x - If the appearance.x is set to left , then this can
	//     optionally be use to specify the position from the left edge. The default margin
	//     is 10.0 (10 points, where 72 points equals 1 inch).
	//     * appearance.margin_y - If the appearance.y is set to top , then this can
	//     optionally be use to specify the position from the top. The default margin for y
	//     is 20.0 (20 points, where 72 points equals 1 inch).
	//     * appearance.text[i] - The text that should appear in the signature box.
	//     Each line is specified in a JSON array item, where i is an integer starting
	//     with 0 as the 1st line. The text can contain the following keywords which
	//     are replaced with actual values:
	//         * cert_country - The signing certificate's subject country (C).
	//         * cert_cn - The signing certificate's subject common name (CN).
	//         * cert_dn - The signing certificate's DN (distinguished name).
	//         * cert_email - The signing certificate's subject email address (E).
	//         * cert_issuer_cn - The signing certificate's issuer's common name (CN).
	//         * cert_locality - The signing certificate's subject locality (L).
	//         * cert_organization - The signing certificate's subject organization
	//         (O).
	//         * cert_org_id - The signing certificate's organization ID.
	//         * cert_ou - The signing certificate's subject organizational unit (OU).
	//         * cert_san_rfc822name - The signing certificate's RFC822 subject
	//         alternative name.
	//         * cert_serial_dec - The signing certificate's serial number in decimal
	//         format.
	//         * cert_serial_hex - The signing certificate's serial number in hex
	//         format.
	//         * cert_state - The signing certificate's subject state (S).
	//         * cert_thumbprint - The signing certificate's thumbprint (The SHA1 hash
	//         of the binary DER representation in hex format).
	//         * current_datetime - Current local date/time in the format such as Sep
	//         11 2020 16:30:54 .
	//         * current_dt - Current local date/time in PDF date/time string format,
	//         such as YYYY.MM.DD hh:mm:ss -05'00'.
	//         * current_rfc822_dt_gmt - Current GMT date/time in RFC822 format, such
	//         as Mon, 22 Nov 2021 15:58:41 GMT .
	//         * current_rfc822_dt_local - Current local date/time in RFC822 format,
	//         such as Mon, 22 Nov 2021 09:56:16 -0600 .
	//         * current_timestamp_gmt - Current GMT date/time in timestamp format,
	//         such as 1990-12-31T23:59:60Z .
	//         * current_timestamp_local - Current local date/time in timestamp format,
	//         such as 2019-10-12T03:20:50.52-04:00 .
	//     * appearance.width - Optional to specify the exact width of the visible
	//     signature rectangle in points, where 72 points equals 1 inch. If the
	//     appearance.width is set, then appearance.height should be set to auto (or
	//     left unset). Chilkat will compute the font scale to achieve the desired
	//     rectangle width, and the resulting height will depend on the text and number of
	//     lines of text.
	//     * appearance.x - The horizontal position on the page of the left edge of the
	//     signature box. Can be a keyword such as left , right , or middle to specify
	//     a typical placement with default margins. Otherwise can be a floating point
	//     number where 0.0 is the leftmost coordinate of a page, and 612.0 is the right
	//     most. Can also be the keyword after to place the signature just to the right
	//     of the rightmost signature on the page.
	//     * appearance.y - The vertical position on the page of the top edge of the
	//     signature box. Can be one of the keywords top or bottom to specify a typical
	//     placement with default margins. Otherwise can be a floating point number where
	//     0.0 is the bottom coordinate of a page, and 792.0 is the top. Can also be the
	//     keyword under to place the signature just under the bottommost signature on
	//     the page.
	//     * contactInfo - Optional to provide free-form text with contact information
	//     about the signer.
	//     * docMDP.add - Set this boolean value to true to include the Document MDP
	//     Permissions with a certifying signature. When a certifying signature is desired,
	//     both lockAfterSigning and docMDP.add should be specified. The default Doc
	//     MDP permission level is 2.
	//     * docMDP.accessPermissions - Include this if the docMDP.add is specified,
	//     and a permission level different from the default value of 2 is desired.
	//     Possible values are:
	//         * 1: No changes to the document are permitted and any changes invalidate
	//         the signature.
	//         * 2: Permitted changes include filling in forms, instantiating page
	//         templates and signing.
	//         * 3: Same as 2, but also allow annotation creation, deletion, and
	//         modification.
	//     * embedCertChain - Boolean to control whether the certificate chain is
	//     included in the signature. The default is to include the certificates in the
	//     chain of authentication. Set this to false to only include the signing
	//     certificate (this is not common).
	//     * hashAlgorithm - If the signing certificate is RSA-based, and the signing
	//     scheme (padding scheme) is RSA-PSS, then this specifies the PSS hash algorithm.
	//     Can be sha1 , sha256 , sha384 , or sha512 . ( sha256 is what should be
	//     commonly chosen.)
	//     * includeRootCert - Boolean to control whether the root CA certificate is
	//     included in the certificate chain (assuming the certificate chain is included).
	//     The default is to include the root CA certificate. Set this to false to exclude
	//     the root CA certificate from being included (this is not common).
	//     * info.* - (added in Chilkat v9.5.0.90) Provides the ability to add or
	//     update the PDF document's /Info , such as Creator , Producer , Title , etc.
	//     Any number of arbitrary member names can be specified and these will be added to
	//     the document's /Info dictionary. However, Chilkat will ignore ModDate and
	//     CreationDate because ModDate is automatically set to the current system
	//     date/time and the CreationDate should not change.
	//     * invisibleSignature - Set this boolean to true to create an invisible
	//     signature with no appearance.
	//     * legalAttestation - Set to provide a free-form text legal attestation.
	//     * location - Optional to provide free-form text with a description of the
	//     geographic location where the PDF was signed.
	//     * lockAfterSigning - Set this boolean to true to certify and lock a PDF as
	//     opposed to adding an approval signature (the default) which allows for
	//     additional countersignatures.
	//     * ltvOcsp - Set this boolean to true to create an LTV-enabled signature.
	//     * noDss - Set this boolean to true to prevent adding a /DSS (Document
	//     Security Store).
	//     * page - The page number where the signature will be placed. Page 1 is the
	//     1st page.
	//     * reason - Optional to provide text indicating the reason for the signature.
	//     * signingAlgorithm - If the signing certificate is RSA-based, then chooses
	//     the RSA padding scheme. Possible values are pkcs for PKCS-v1_5 or pss for
	//     RSASSA-PSS.
	//     * signingCertificateV2 - Set to 1 to include the SigningCertificateV2
	//     authenticated attribute. This is desired in most cases.
	//     * signingTime - Set to 1 to include the SigningTime authenticated attribute.
	//     This is desired in most cases. Note: This is not the same as time-stamping. This
	//     is a fundamental authenticated attribute that should be included with or without
	//     the addition of time-stamping.
	//     * sigTextLabel - Set to provide free-form text for the signatures annotation
	//     text label.
	//     * subFilter - Set to /ETSI.CAdES.detached , /adbe.pkcs7.detached , or
	//     something else.
	//     * timestampToken.enabled - Set to true to tell Chilkat to request a
	//     timestamp from a TSA server and include the timestamp token in the signature's
	//     authentication attributes
	//     * timestampToken.tsaUrl - The timestamp server's URL.
	//     * timestampToken.tsaUsername, timestampToken.tsaPassword - If the timestamp
	//     server requires a login and password.
	//     * timestampToken.requestTsaCert - Set to true to ask the timestamp server to
	//     include its certificate in the timestamp token.
	//     * unsignedSignatureField - (added in Chilkat v9.5.0.90) Can be set to
	//     specify the name of the unsigned signature field that is to be signed.
	// 
	// 
	// References:
	// 1: https://cknotes.com/pdf-unsigned-signature-fields/
	bool SignPdf(CkJsonObject &jsonOptions, const char *outFilePath);

	// Signs the open PDF and if successful writes the signed PDF to the ARG3. The jsonOptions
	// contains information and instructions about the signature. See the examples
	// below for more detailed information about the JSON options listed here.
	// 
	// Summary of PDF Signing Options
	//     * appearance.fillUnsignedSignatureField - Can be set to true) to tell
	//     Chilkat to sign an existing unsigned signature field. Chilkat will automatically
	//     scale the visual appearance (text + graphics) to fit the pre-existing signature
	//     field. When fillUnsignedSignatureField is specified, it is not necessary to set
	//     appearance.x, appearance.y, appearance.fontScale, etc.
	// 
	//     Starting in v9.5.0.90, the unsignedSignatureField option (see below) can be
	//     used to specify the unsigned signature field to be used. Otherwise, the 1st
	//     available unsigned field is used.
	// 
	//     See PDF Unsigned Signature Fields for more information.
	// 
	//     * appearance.fontScale - The font scale (in pts) to be used, such as 10.0 .
	//     * appearance.height - Optional to specify the exact height of the visible
	//     signature rectangle in points, where 72 points equals 1 inch. If the
	//     appearance.height is set, then appearance.width should be set to auto (or
	//     left unset). Chilkat will compute the font scale to achieve the desired
	//     rectangle height, and the resulting width will depend on the text.
	//     * appearance.image - Indicates an image will be included in the signature.
	//     Set to the keyword custom-jpg to use an image set by calling the
	//     SetSignatureJpeg method. Otherwise can be set to one of the following keywords
	//     to indicate a built-in SVG graphic. (These are graphics embedded within the
	//     Chilkat library itself.)
	//         * green-check-grey-circle
	//         * green-check-green-circle
	//         * application-approved
	//         * application-rejected
	//         * document-accepted
	//         * approved
	//         * blue-check-mark
	//         * green-check-mark
	//         * green-check-grey-circle
	//         * red-x-red-circle
	//         * rejected
	//         * result-failure
	//         * result-pass
	//         * signature
	//         * document-check
	//         * document-x
	//         * red-x-grey-circle
	//     * appearance.imageOpacity - Sets the image opacity. Can be an integer from 1
	//     to 100.
	//     * appearance.imagePlacement - Sets the image placment within the signature
	//     rectangle. Can be left , right , or center . Images placed in the center
	//     typically have opacity 50% or less because the text is displayed over the image
	//     (i.e. it is a background image). Images placed left or right are not background
	//     images. The signature rectangle is divided into two sub-rectangles, one for the
	//     image, and one for the text.
	//     * appearance.margin_x - If the appearance.x is set to left , then this can
	//     optionally be use to specify the position from the left edge. The default margin
	//     is 10.0 (10 points, where 72 points equals 1 inch).
	//     * appearance.margin_y - If the appearance.y is set to top , then this can
	//     optionally be use to specify the position from the top. The default margin for y
	//     is 20.0 (20 points, where 72 points equals 1 inch).
	//     * appearance.text[i] - The text that should appear in the signature box.
	//     Each line is specified in a JSON array item, where i is an integer starting
	//     with 0 as the 1st line. The text can contain the following keywords which
	//     are replaced with actual values:
	//         * cert_country - The signing certificate's subject country (C).
	//         * cert_cn - The signing certificate's subject common name (CN).
	//         * cert_dn - The signing certificate's DN (distinguished name).
	//         * cert_email - The signing certificate's subject email address (E).
	//         * cert_issuer_cn - The signing certificate's issuer's common name (CN).
	//         * cert_locality - The signing certificate's subject locality (L).
	//         * cert_organization - The signing certificate's subject organization
	//         (O).
	//         * cert_org_id - The signing certificate's organization ID.
	//         * cert_ou - The signing certificate's subject organizational unit (OU).
	//         * cert_san_rfc822name - The signing certificate's RFC822 subject
	//         alternative name.
	//         * cert_serial_dec - The signing certificate's serial number in decimal
	//         format.
	//         * cert_serial_hex - The signing certificate's serial number in hex
	//         format.
	//         * cert_state - The signing certificate's subject state (S).
	//         * cert_thumbprint - The signing certificate's thumbprint (The SHA1 hash
	//         of the binary DER representation in hex format).
	//         * current_datetime - Current local date/time in the format such as Sep
	//         11 2020 16:30:54 .
	//         * current_dt - Current local date/time in PDF date/time string format,
	//         such as YYYY.MM.DD hh:mm:ss -05'00'.
	//         * current_rfc822_dt_gmt - Current GMT date/time in RFC822 format, such
	//         as Mon, 22 Nov 2021 15:58:41 GMT .
	//         * current_rfc822_dt_local - Current local date/time in RFC822 format,
	//         such as Mon, 22 Nov 2021 09:56:16 -0600 .
	//         * current_timestamp_gmt - Current GMT date/time in timestamp format,
	//         such as 1990-12-31T23:59:60Z .
	//         * current_timestamp_local - Current local date/time in timestamp format,
	//         such as 2019-10-12T03:20:50.52-04:00 .
	//     * appearance.width - Optional to specify the exact width of the visible
	//     signature rectangle in points, where 72 points equals 1 inch. If the
	//     appearance.width is set, then appearance.height should be set to auto (or
	//     left unset). Chilkat will compute the font scale to achieve the desired
	//     rectangle width, and the resulting height will depend on the text and number of
	//     lines of text.
	//     * appearance.x - The horizontal position on the page of the left edge of the
	//     signature box. Can be a keyword such as left , right , or middle to specify
	//     a typical placement with default margins. Otherwise can be a floating point
	//     number where 0.0 is the leftmost coordinate of a page, and 612.0 is the right
	//     most. Can also be the keyword after to place the signature just to the right
	//     of the rightmost signature on the page.
	//     * appearance.y - The vertical position on the page of the top edge of the
	//     signature box. Can be one of the keywords top or bottom to specify a typical
	//     placement with default margins. Otherwise can be a floating point number where
	//     0.0 is the bottom coordinate of a page, and 792.0 is the top. Can also be the
	//     keyword under to place the signature just under the bottommost signature on
	//     the page.
	//     * contactInfo - Optional to provide free-form text with contact information
	//     about the signer.
	//     * docMDP.add - Set this boolean value to true to include the Document MDP
	//     Permissions with a certifying signature. When a certifying signature is desired,
	//     both lockAfterSigning and docMDP.add should be specified. The default Doc
	//     MDP permission level is 2.
	//     * docMDP.accessPermissions - Include this if the docMDP.add is specified,
	//     and a permission level different from the default value of 2 is desired.
	//     Possible values are:
	//         * 1: No changes to the document are permitted and any changes invalidate
	//         the signature.
	//         * 2: Permitted changes include filling in forms, instantiating page
	//         templates and signing.
	//         * 3: Same as 2, but also allow annotation creation, deletion, and
	//         modification.
	//     * embedCertChain - Boolean to control whether the certificate chain is
	//     included in the signature. The default is to include the certificates in the
	//     chain of authentication. Set this to false to only include the signing
	//     certificate (this is not common).
	//     * hashAlgorithm - If the signing certificate is RSA-based, and the signing
	//     scheme (padding scheme) is RSA-PSS, then this specifies the PSS hash algorithm.
	//     Can be sha1 , sha256 , sha384 , or sha512 . ( sha256 is what should be
	//     commonly chosen.)
	//     * includeRootCert - Boolean to control whether the root CA certificate is
	//     included in the certificate chain (assuming the certificate chain is included).
	//     The default is to include the root CA certificate. Set this to false to exclude
	//     the root CA certificate from being included (this is not common).
	//     * info.* - (added in Chilkat v9.5.0.90) Provides the ability to add or
	//     update the PDF document's /Info , such as Creator , Producer , Title , etc.
	//     Any number of arbitrary member names can be specified and these will be added to
	//     the document's /Info dictionary. However, Chilkat will ignore ModDate and
	//     CreationDate because ModDate is automatically set to the current system
	//     date/time and the CreationDate should not change.
	//     * invisibleSignature - Set this boolean to true to create an invisible
	//     signature with no appearance.
	//     * legalAttestation - Set to provide a free-form text legal attestation.
	//     * location - Optional to provide free-form text with a description of the
	//     geographic location where the PDF was signed.
	//     * lockAfterSigning - Set this boolean to true to certify and lock a PDF as
	//     opposed to adding an approval signature (the default) which allows for
	//     additional countersignatures.
	//     * ltvOcsp - Set this boolean to true to create an LTV-enabled signature.
	//     * noDss - Set this boolean to true to prevent adding a /DSS (Document
	//     Security Store).
	//     * page - The page number where the signature will be placed. Page 1 is the
	//     1st page.
	//     * reason - Optional to provide text indicating the reason for the signature.
	//     * signingAlgorithm - If the signing certificate is RSA-based, then chooses
	//     the RSA padding scheme. Possible values are pkcs for PKCS-v1_5 or pss for
	//     RSASSA-PSS.
	//     * signingCertificateV2 - Set to 1 to include the SigningCertificateV2
	//     authenticated attribute. This is desired in most cases.
	//     * signingTime - Set to 1 to include the SigningTime authenticated attribute.
	//     This is desired in most cases. Note: This is not the same as time-stamping. This
	//     is a fundamental authenticated attribute that should be included with or without
	//     the addition of time-stamping.
	//     * sigTextLabel - Set to provide free-form text for the signatures annotation
	//     text label.
	//     * subFilter - Set to /ETSI.CAdES.detached , /adbe.pkcs7.detached , or
	//     something else.
	//     * timestampToken.enabled - Set to true to tell Chilkat to request a
	//     timestamp from a TSA server and include the timestamp token in the signature's
	//     authentication attributes
	//     * timestampToken.tsaUrl - The timestamp server's URL.
	//     * timestampToken.tsaUsername, timestampToken.tsaPassword - If the timestamp
	//     server requires a login and password.
	//     * timestampToken.requestTsaCert - Set to true to ask the timestamp server to
	//     include its certificate in the timestamp token.
	//     * unsignedSignatureField - (added in Chilkat v9.5.0.90) Can be set to
	//     specify the name of the unsigned signature field that is to be signed.
	// 
	// 
	// References:
	// 1: https://cknotes.com/pdf-unsigned-signature-fields/
	CkTask *SignPdfAsync(CkJsonObject &jsonOptions, const char *outFilePath);


	// Signs the open PDF and if successful writes the signed PDF to the bd. The jsonOptions
	// contains information and instructions about the signature. See the reference
	// documentation for the SignPdf method for details about jsonOptions.
	bool SignPdfBd(CkJsonObject &jsonOptions, CkBinData &bd);

	// Signs the open PDF and if successful writes the signed PDF to the bd. The jsonOptions
	// contains information and instructions about the signature. See the reference
	// documentation for the SignPdf method for details about jsonOptions.
	CkTask *SignPdfBdAsync(CkJsonObject &jsonOptions, CkBinData &bd);


	// Updates or adds XMP metdata to a PDF. The metadata is passed in sb. If
	// successful, the PDF with updated or inserted metadata is written to outFilePath.
	bool UpdateMetadata(CkStringBuilder &sb, const char *outFilePath);


	// Updates or adds XMP metdata to a PDF. The metadata is passed in sb. If
	// successful, the PDF with updated or inserted metadata is written to bd.
	bool UpdateMetadataBd(CkStringBuilder &sb, CkBinData &bd);


	// Verifies the Nth signature contained in the PDF, where the 1st signature is
	// indicated by an index of 0. Returns true if the signature valid, otherwise
	// returns false. The sigInfo is an output argument and is populated with
	// information about the validated or unvalidated signature.
	bool VerifySignature(int index, CkJsonObject &sigInfo);






	// END PUBLIC INTERFACE


};
#if !defined(__sun__) && !defined(__sun)
#pragma pack (pop)
#endif
	
#endif
