pdftron / pdftron-sign-app Goto Github PK

Objective:

• Create a pdftron-sign-app for vue.js

I'm attempting to merge my annotations from a new URL on my domain and the xfdf data stored in the database and receive the following error but am unsure what it means or how to troubleshoot that.

{ message:
   'Exception: \n\t Message: XML Parsing error\n\t Conditional expression: false\n\t Version      : 8.1                                     .0.30519\n\t Platform     : Linux\n\t Architecture : AMD64\n\t Filename     : XMLParser.cpp\n\t Function     : Advance\n\t Linenumber   : 132\n',
  type: 'InvalidPDF' }

I pull the pdf link this:

const urlx = await new URL(`https://mydomain.com/uploads/${uuid}/${docRef}`);
const doc = await PDFNet.PDFDoc.createFromURL(urlx.href);

It happens when I attempt to add the xml data via let res to this:

await PDFNet.FDFDoc.createFromXFDF(res);

This is what is contained inside of "res":

<?xml version="1.0" encoding="UTF-8"?><xfdf xmlns="http://ns.adobe.com/xfdf/" xmlns:xml="" xml:space="preserve"><fields><field name="[email protected]"><field name="io_SIGNATURE_16121228784590"><value>_DEFAULT</value></field></field></fields><annots><ink page="0" rect="141.353,462.4451018329939,460.397,581.139" color="#000000" flags="print" name="bb08dcd4-eb07-413b-bb35-31edf0397635" title="Guest" subject="Signature" date="D:20210131115455-08'00'" creationdate="D:20210131115454-08'00'"><inklist><gesture>149.25870672097759,538.9391317040055;150.1611846571623,538.9391317040055;155.57605227427024,544.353 9993211134;165.50330957230145,555.1837345553292;180.84543448744063,567.8184256619145;205.21233876442636 ,578.6481608961303;220.55446367956552,579.550638832315;222.35941955193482,578.6481608961303;221.4569416 1575017,566.0134697895452;206.11481670061102,545.256477257298;177.235522742702,526.3044405974201;151.06 366259334695,511.8647936184657;142.94136116768502,507.3524039375425;168.2107433808554,505.5474480651730 6;237.70154446707403,499.23010251188055;349.60880855397147,483.88797759674134;431.7343007467754,468.545 8526816021;442.56403598099115,464.03346300067886;438.95412423625254,464.03346300067886;430.831822810590 6,464.03346300067886;429.92934487440607,464.9359409368635;429.0268669382213,479.3755879158181;440.75908 010862184,492.9127569585879;454.29624915139175,504.64497012898846;458.808638832315,510.9623156822811;45 8.808638832315,514.5722274270197;456.10120502376105,518.1821391717583</gesture></inklist></ink></annots><pages><defmtx matrix="1,0,0,-1,0,792"/></pages></xfdf>

So based on the error I'm unsure if its a XML issue or a PDF issue in the way that I'm storing the file in the urlx.href link..
Any help in troubleshooting would be appreciated.

Hello! I'm trying to develop an API for PAdES Signatures using PDFTron and OpenSSL and I have an issue while adding signingCertificatev2 attribute which is required by PAdES standard. I tried to use this slice of code to create ESS_SIGNING_CERT field:

ESS_SIGNING_CERT_V2* signing_cert = OSSL_ESS_signing_cert_v2_new_init(EVP_get_digestbyname(this->hash_type.c_str()), this->x509_cert, this->x509_chain, -1);

	int len_sign_cert = i2d_ESS_SIGNING_CERT_V2(signing_cert, NULL);

	unsigned char* encoded_data = (unsigned char*)malloc(len_sign_cert * sizeof(unsigned char));
	unsigned char* copy = encoded_data;
	i2d_ESS_SIGNING_CERT_V2(signing_cert, &encoded_data);

	ASN1_OCTET_STRING* octet_string = ASN1_OCTET_STRING_new();
	ASN1_OCTET_STRING_set(octet_string, copy, len_sign_cert);

	PKCS7_add_signed_attribute(p7Si, NID_id_smime_aa_signingCertificateV2, V_ASN1_OCTET_STRING, octet_string);

I also tried to create this field using this method:

static std::vector<UChar> pdftron::PDF::DigitalSignatureField::GenerateESSSigningCertPAdESAttribute (const Crypto::X509Certificate &  in_signer_cert,
  const Crypto::DigestAlgorithm::Type  in_digest_algorithm_type)

my function has the following code:

PDFDoc& PadesSignatureService::signfile(SignatureHandler&handler,char*Reason)
{

	SignatureHandlerId sigHandlerId = this->document->AddSignatureHandler(handler);
	
	this->signature_field->SignOnNextSaveWithCustomHandler(sigHandlerId);
	
	Date* d = new Date();
	d->SetCurrentTime();
	this->signature_field->SetSigDictTimeOfSigning(*d);

        //i tried with and without this sequence (i replaced it with the OpenSSL field for ESSSIgnatureCert when i didn't use this call)
	std::vector<unsigned char>signing_certificate = this->signature_field->GenerateESSSigningCertPAdESAttribute(((PadesSignatureBHandler&)handler).getcertificate(), ((PadesSignatureBHandler&)handler).getdigestalgorithm());

	Obj sig_dict = this->signature_field->GetSDFObj();

	sig_dict.FindObj("V").PutName("SubFilter", "ETSI.CAdES.detached");

	this->signature_field->SetReason(Reason);

	char *output_file=get_output_filename(this->filename);
	try {
		this->document->Save(output_file, SDFDoc::e_incremental, NULL);
	}
	catch (pdftron::Common::Exception e)
	{
		std::cout << e.GetMessage();
	}
	return *(this->document);
}

Now, the issue is that my signature is recognized by FoxitReader, but not by AdobeReader. The error that I encounter is this one:

In FoxitReader, the signature does not have any problem:

Using DSS Verification I obtained the following results:

I attach here also the report of DSS:
DSS-Detailed-report.pdf

I used a GemBox PKCS12 for testing.

Could you help me?
Best Wishes,
Ionut Corbu

• Sign with two emails

I want to validate and make sure that end user filled in all the required fields upon clicking Complete button.

I could not find that code in your repo. could you put some light on this please?

Thanks

pdftron-sign-app\node_modules\postcss-safe-parser\lib\safe-parser.js:1:17) {
code: 'ERR_PACKAGE_PATH_NOT_EXPORTED'
anybody who can help me in this to run?

index.js:1 [2023-04-03T15:39:18.803Z] @firebase/firestore: Firestore (8.2.2): Could not reach Cloud Firestore backend. Backend didn't respond within 10 seconds.
This typically indicates that your device does not have a healthy Internet connection at the moment. The client will operate in offline mode until it is able to successfully connect to the backend.