Error in validation of PDF/A converted with ConvertToPDFA method

Question

Hi:In a Microsoft Visual Studio Community 2022 (64-bit) environment - CurrentVersion 17.7.4I convert PDF files to PDF/A as in the following example:try{    // Start of the conversion process    mDocument = new PdfLoadedDocument(it.Text);    mDocument.ConvertToPDFA(PdfConformance);    // modify the file name to add "_PDF-A"    string fileWithOutExtension = Path.Combine(Path.GetDirectoryName(it.Text), Path.GetFileNameWithoutExtension(it.Text));    fileWithOutExtension = fileWithOutExtension + "_PDF-A.PDF";    lvPDF_A.Items.Add(fileWithOutExtension);    mDocument.Save(fileWithOutExtension);    mDocument.Close();}Apparently the conversion is correct but when trying to validate the file with Adobe Acrobat it indicates that there are validation errors. I have tried to validate the same pdf through a website like: https://avepdf.com/es/pdfa-validation Obtaining the same result validation errors. Are the generated PDF/A files really valid? Finally, I have tried to generate the same PDF using the demo made for ASP.NET:https://ej2.syncfusion.com/aspnetmvc/PDF/PdfToPdfAConverter#/fluent. The generated file presents the same problem when validated online or with Adobe.My apologies because some of the files and images have the data in SpanishBest regards.Attachment: 6322942AManualPrakticaHE_A_(2)_de916196.zip

Ravikumar Baladhandapani · Answer

Hi Jesús,Could you kindly provide the input pdf file for which you are encountering the issue? This will greatly assist us in conducting further investigation.Regards,Ravikumar B

Jesús · Answer

Hi:My apologies, I thought I had attached it. I have attached the original file and the one converted to PDF/A. On the other hand, I am doing the work with WinForm and C#, the link to the demo with ASP.NET was to indicate that the validation error also occurred with the same file.

Thanks

Best Regards.Attachment: 6322942AManualPrakticaHE_3518252.rar

Ravikumar Baladhandapani · Answer

Thanks for the document.We were able to reproduce the reported issue with provided details on our end and currently we are validating on this and will update the further details on December 6th 2023.

Ravikumar Baladhandapani · Answer

The reported issues still need a lot more in-depth research; thus we are looking into them. On December 8th, 2023, further information will be updated.

Ravikumar Baladhandapani · Answer

We have confirmed the issue “Conformance
failure occurs while converting particular pdf to Pdf/A conformance” as
a defect in our product. Since our 2023 volume 4 main release is expected to be
rolled out in the upcoming week. So, there will be no weekly release in
upcoming week. We will include the fix for the reported issue forth coming
weekly release after our Volume 4 main release.Please use the below feedback link to track the status of the reported bug.https://www.syncfusion.com/feedback/49148/conformance-failure-occurs-while-converting-particular-pdf-to-pdf-a-conformance However, resolving this conformance error passed in Adobe Acrobat Pro,
but it failed on the Ave PDF online validator. We have attached the output
document for your reference, along with a screenshot taken in Adobe Acrobat
Reader.Note: If you require a patch for the reported issue in any of our Essential
Studio Main or SP release version, then kindly let us know the version, so that
we can provide a patch in that version based on our SLA policy. Disclaimer: “Inclusion of this solution in the weekly release may
change due to other factors including but not limited to QA checks and works
reprioritization.”Attachment: conformanceoutput_71b46545.zip

Karmegam Seerangan · Answer

Since our 2023 Volume 4 main release is rolled out this week, we do not have
any weekly releases this week. The fix for this issue will be available in our
upcoming weekly release on December 26, 2023.

Jesús · Answer

Good afternoon:I'm sorry to have to return to the matter of converting to PDF/A. Once the libraries have been updated to version 2023 Volume 4 - v24.*. The problem continues to occur. I am attaching a rar file that contains an image of the PDF/A 1b non-conformity in Adobe Acrobat, the PDF file 6322942A-Manual-Praktica-HE.pdf, and the Output file theoretically with PDF/A 1b compliance in the ..\Debug folder. As well as the source code of the projectAttachment: TestConvertToPDFA_75ff781d.rar

Ravikumar Baladhandapani · Answer

The fix for the issue will be available in our upcoming weekly release on December 27, 2023.

Ravikumar Baladhandapani · Answer

We are currently dealing with some
issues in fixing automation problems. Our team is focused on resolving this
quickly. Due to concerns about stability, we cannot include the fix in our last
weekly update. However, we have fixed the reported issue and We have
created custom NuGet for this fix in mentioned version (24.1.43.0). We will ensure that the solution is included in our next
weekly NuGet release, which you can expect on January 3rd , 2024.Custom NuGet : https://www.syncfusion.com/downloads/support/directtrac/general/ze/syncfusion.pdf.winforms.24.1.43577461193Please find the below link for NuGet cache clear,https://support.syncfusion.com/kb/article/6265/how-to-clear-nuget-cache

Jeyalakshmi Thangamarippandian · Answer

We have included the fix for this “Conformance failure occurs while converting particular pdf to Pdf/A conformance” fix in our latest weekly release (24.1.44).Please use the below link to download our latest NuGet,NuGet Link: https://www.nuget.org/packages/Syncfusion.Pdf.WinForms/24.1.44

Jesús · Answer

Good afternoon:I have verified that the latest nuget package has included the fix for this “Conformance failure occurs while converting particular pdf to Pdf/A conformance” fix in our latest weekly release (24.1.44) and generates pdfA 1b whose validation with Adobe Acrobat is correct. However, when the same process is carried out for conformance 2b, Adobe acrobat indicates incorrect validation. Attached is a winrar file with the image of the erroneous validation, the original PDF file, the PDFA file (Output.pdf) in debug folder and the complete solution in Visual Studio.Thank you so muchBest regards.Attachment: TestConvertToPDFA_2b_32ba4683.rar

Jeyalakshmi Thangamarippandian · Answer

We were able to reproduce the reported issue with the provided details on our end and currently we are analyzing on this and will update the further details on January 8th 2024.

Jeyalakshmi Thangamarippandian · Answer

We have confirmed the issue “Conformance failure occurs while converting particular pdf to Pdf/A conformance” as a defect in our product and we will include the fix into our upcoming weekly NuGet release on January 23rd, 2024. Please use the below feedback link to track the status of the reported bug.https://www.syncfusion.com/feedback/49717/pdfgrid-border-style-not-support-when-drawing-multiple-headers Note: If you require a patch for the reported issue in any of our Essential Studio Main or SP release version, then kindly let us know the version, so that we can provide a patch in that version based on our SLA policy. Disclaimer: “Inclusion of this solution in the weekly release may change due to other factors including but not limited to QA checks and works reprioritization.”

Jesús · Answer

Good afternoon: Please, send me a patch for the Essential Studio 24.1.41 versionBest Regards.

Jeyalakshmi Thangamarippandian · Answer

Thanks for the update,

As requested, we will provide a patch for this issue “Conformance failure occurs while converting particular pdf to Pdf/A conformance” in Essential Studio 24.1.41 version on January 23rd, 2024.

Please use the below feedback link to track the status of the reported bug.

https://www.syncfusion.com/feedback/49801/conformance-failure-occurs-while-converting-particular-pdf-to-pdf-a-conformance

Karmegam Seerangan · Answer

We have created a custom NuGet for
this fix in the mentioned version (v24.1.41). Please find the custom NuGet package on the below link.

HTTP Link

https://syncfusion.com/Installs/support/patch/24.1.41/1534135/F185658/SyncfusionPatch_24.1.41_1534135_1232024052801936_F185658.exe

HTTP Link(Assemblies)

https://syncfusion.com/Installs/support/patch/24.1.41/1534135/F185658/SyncfusionPatch_24.1.41_1534135_1232024052801936_F185658.zip

HTTP Link(Nuget)

https://syncfusion.com/Installs/support/patch/24.1.41/1534135/F185658/SyncfusionNuget_24.1.41_1534135_1232024052801936_F185658.zip

Jesús · Answer

Good afternoonI have tried the conversion to PDF/A 1B and 2B again with the latest patch, and it still does not pass the Adbobe Acrobat validation tests.I hope you are not performing some wrong test, if so, my apologies.I attach file. rar with verification screenshot, acrobat, original PDF file and pdf/A file (output.pdf) as well as the complete project containing the aforementioned files in the debug folderThank youBest RegardsAttachment: TestConvertToPDFA_e9bce3f8.rar

Jesús · Answer

Hi;As I indicated in my previous message with the patch sent:https://syncfusion.com/Installs/support/patch/24.1.41/1534135/F185658/SyncfusionNuget_24.1.41_1534135_1232024052801936_F185658.zip?_gl=1*19qvpxk*_ga*OTM5MzMxOTIxLjE2OTQ4 MTY0NDg.*_ga_41J4HFMX1J*MTcwNzA2OTM2MC45MS4wLjE3MDcwNjkzNjYuMC4wLjA and ....... ....Conformace validation 1B and 2B did not passHowever, with the latest nuget package, 24.2.3, the conversion to PDF/A meets conformance validation 1B and 2B. While with the patch sent, As I indicated in my previous message with the patch sent.Later I tried with another pdf file, which I attach, which does not pass the 1B and 2B validation conformance either.Best Regards.Attachment: p_153_version_0_c6f27624.rar

Jeyalakshmi Thangamarippandian · Answer

We were able to reproduce the reported issue with the provided details on our end and currently we are analyzing on this and will update the further details on February 7th, 2024.

Jeyalakshmi Thangamarippandian · Answer

We have confirmed the issue “Conformance conversion not working in particular document” as a defect in our product and we will include the fix into our upcoming weekly NuGet release on February 27th, 2024. Please use the below feedback link to track the status of the reported bug.https://www.syncfusion.com/feedback/50691/conformance-conversion-not-working-in-particular-document Note: If you require a patch for the reported issue in any of our Essential Studio Main or SP release version, then kindly let us know the version, so that we can provide a patch in that version based on our SLA policy. Disclaimer: “Inclusion of this solution in the weekly release may change due to other factors including but not limited to QA checks and works reprioritization.”

Jesús · Answer

Good afternoon: Please, send me a patch for the Essential Studio 24.1.41 versionBest Regards.

Jeyalakshmi Thangamarippandian · Answer

We will provide the patch for version 24.1.41 on February 27, 2024.

Jeyalakshmi Thangamarippandian · Answer

We have created a licensed patch for this fix “Conformance conversion not working in particular document” in the version 24.1.41 and the patch can be downloaded from the following link.

Recommended approach - exe will perform automatic configuration

Please find the patch setup from below

https://syncfusion.com/Installs/support/patch/24.1.41/1534135/F185658/SyncfusionPatch_24.1.41_1534135_2272024073521341_F185658.exe

Advanced approach – use only if you have specific needs and can directly replace existing assemblies for your build environment

https://syncfusion.com/Installs/support/patch/24.1.41/1534135/F185658/SyncfusionPatch_24.1.41_1534135_2272024073521341_F185658.zip

Please find the patch assemblies alone from below

Assembly Version: 24.1.41

Installation Directions :

This patch should replace the files “Syncfusion.Pdf.Base.dll” under the following folder.

$system drive:\ Files\Syncfusion\Essential Studio\24.1.41 \precompiledassemblies\24.1.41 \4.6

Eg : $system drive:\Program Files\Syncfusion\Essential Studio\9.3.0.61\precompiledassemblies\9.3.0.61\4.0

To automatically run the Assembly Manager, please check the Run assembly manager checkbox option while installing the patch. If this option is unchecked, the patch will replace the assemblies in precompiled assemblies’ folder only. Then, you will have to manually copy and paste them to the preferred location or you will have to run the Syncfusion Assembly Manager application (available from the Syncfusion Dashboard, installed as a shortcut in the Application menu) to re-install assemblies.

Note :

To change how you receive bug fixes, ask your license management portal admin to change your project’s patch delivery mode.

https://www.syncfusion.com/account/license

Jesús · Answer

Good afternoon:After repeating the tests in accordance with the patch received, the result is still incorrect. Adobe Acrobat indicates that it is not compliant with the 2B standard, Output.pdf file in the Debug folder. Attached complete project in the debug folder there are two pdf files, challenge question 153 version 0.pdf that in previous versions of the library was not compliant and currently it is ok, however the other file I attached does not pass the acrobat validation tests.Best Regards.Attachment: TestConvertToPDFA_a89d8e3b.rar

Jeyalakshmi Thangamarippandian · Answer

Sorry for inconvenience cause.

We have created the custom patch for this issue. And included the both fix for this NuGet. Please find the attached custom patch,

Patch : https://www.syncfusion.com/downloads/support/directtrac/general/ze/Syncfusion.Pdf.WinForms.24.1.41-195731207

Jesús · Answer

Good afternoon:I am sorry to inform you that although the new version of Syncfusion.Pdf.WinForms 25.1.35, nuget package improves the results with respect to previous versions. There are still a number of pdf files that do not pass verification with Acrobat. I attach file and complete test project. In the debug folder there are the files and 3 pdfs, which do not pass the verification in their corresponding Output.pdf fileBest Regards.Attachment: TestConvertToPDFA_dd6047df.rar

Jeyalakshmi Thangamarippandian · Answer

We were able to reproduce the reported issue with the provided details on our end, and currently, we are analyzing it. We will update further details on March 20th , 2024.

Jeyalakshmi Thangamarippandian · Answer

We have confirmed the issue “Conformance failed in particular documents” as a defect in our product and we will include the fix into our upcoming weekly NuGet release on April 2nd, 2024. Please use the below feedback link to track the status of the reported bug.https://www.syncfusion.com/feedback/51940/conformance-failed-in-particular-documents  Note: If you require a patch for the reported issue in any of our Essential Studio Main or SP release version, then kindly let us know the version, so that we can provide a patch in that version based on our SLA policy. Disclaimer: “Inclusion of this solution in the weekly release may change due to other factors including but not limited to QA checks and works reprioritization.”

Jeyalakshmi Thangamarippandian · Answer

We have resolved the issue  “Conformance failed in particular documents “. We have created a custom NuGet for this fix in the mentioned version (v24.1.41). Please find the custom NuGet package on the below link. Patch: https://syncfusion.com/Installs/support/patch/25.1.35/1534135/F185658/SyncfusionNuget_25.1.35_1534135_4022024032344362_F185658.zipRoot cause: We identified an issue where convert to the Pdf A CMYKColorspace not updated as per the Conformance rule.

Jeyalakshmi Thangamarippandian · Answer

IssueResponse Catalogo_comercial_radiadores_Baxi.pdf   We have resolved the issue  “Conformance failed in particular documents “. We have created a custom NuGet for this fix in the mentioned version (v24.1.41). Please find the custom NuGet package on the below link. Patch  : https://syncfusion.com/Installs/support/patch/25.1.35/1534135/F185658/SyncfusionNuget_25.1.35_1534135_4022024032344362_F185658.zip  Root cause : Root cause: We identified an issue where convert to the Pdf A CMYKColorspace not updated as per the Conformance rule.   Justificante transferencia Dermiteka-m.pdfkit_modulo_cocina_alto_excellence_blanco_cm_10350606_techsheetsup.pdf  As of now, we do not have support to conformance conversion for Type3 font document. So, we have logged the feature request for this “Support to the conformance conversion for the Type3 font documents” and we don't have any immediate plan to implement this feature. We will implement this support on any of our upcoming release.You can track the status of the feature using the following feedback link.Support to the conformance conversion for the Type3 font documents in WinForms | Feedback Portal (syncfusion.com)

Jesús · Answer

Hi:Sorry to come back to this issue. But I keep checking validation errors in the PDF->PDF/A conversion. In this case with PDF Reference v1.7. I attach the original file and the converted one. I have verified the non-compliance with Adobe Acrobat and VeraPDF.I have used the following code:​//await Task.Run(() => mDocument.ConvertToPDFA(PdfConformance));await Task.Run(() => mDocument.Conformance = PdfConformance);Version of Syncfusion.PDF.Base : 27.1462.48.0Thank you very muchJesusAttachment: pdfreference1.7A_41c59ffa.rar

Irfana Jaffer Sadhik · Answer

Hi Jesus,Since the issue occurs with the new PDF document. We proceed to close this forum, and We have created a new forum for better follow up. So, if you have any additional issue files. Please share with us in the following thread and follow up the below link for more information: 194944Regards,Irfana J.

HTTP Link	https://syncfusion.com/Installs/support/patch/24.1.41/1534135/F185658/SyncfusionPatch_24.1.41_1534135_1232024052801936_F185658.exe
HTTP Link(Assemblies)	https://syncfusion.com/Installs/support/patch/24.1.41/1534135/F185658/SyncfusionPatch_24.1.41_1534135_1232024052801936_F185658.zip
HTTP Link(Nuget)	https://syncfusion.com/Installs/support/patch/24.1.41/1534135/F185658/SyncfusionNuget_24.1.41_1534135_1232024052801936_F185658.zip