Problem converting PDF to PDF/A document signed

Aspose.PDF Product Family
1

Hello everyone,

I am evaluating the possibility of buying the ASPOSE.PDF license, then apply for a temporary license to test.

I’m trying to convert PDF documents to PDF / A, and it works fine, BUT at the time of converting a digitally signed PDF document to PDF / A the signature is lost.

This is the code used:

String myDir = “C:\test\”;
License license = new License();
license.setLicense(“Aspose.Pdf.Java.lic”);
Document doc = new Document(myDir + “test_signed.pdf”);
// Convert to PDF/A2_a compliant document
doc.convert(“file.log”, PdfFormat.PDF_A_2A, ConvertErrorAction.Delete);
// Save resultant document
doc.save(myDir + “Aspose.pdf”);

Could you please help me with this.

Thanks, greetings.

2

@Michael08

Thanks for contacting support.

We have tested the scenario with one of our sample PDFs and observed that signature image remained intact after PDF to PDFA conversion. However the signature panel and signature field was lost in the resultant file. Would you please share with us if you are facing same issue or a different one and also, we will really appreciate if you can share sample input document. We will test the scenario again in our environment and address it accordingly.

3

Thanks for your reply.

It is the same problem, attached the document signed before and after the conversion.

test.pdf (111.6 KB)
test_signed.pdf (184.5 KB)

4

@Michael08

Thanks for contacting support.

We have tested the scenario with Aspose.Pdf for Java 17.9 and observed the same issue, which you have mentioned. Therefore, we have logged this as PDFJAVA-37127 in our issue tracking system. We will further look into the details of the issue and keep you posted with the status of its correction. Please be patient and spare us little time.

We are sorry for the inconvenience.

5

Thanks

I will be pending of your answer, because of this depends the purchase of the license.

Will the monitoring be done by this same means?

Thank you very much, regards.

6

@Michael08,

Thanks for contacting support.

The bug tracking system is our internal implementation and I am afraid you may not have access over it. However as soon as we have some definite updates regarding earlier reported issue, we will intimate you within this forum thread.

Your patience and comprehension is greatly appreciated in this regard.

7

@codewarior,

I would like to know how the report goes, a month ago and I have not received an answer about it.

Thank you, best regards.

8

@Michael08

Thanks for your inquiry.

I have checked the status of earlier logged issue and I am afraid that it is not yet resolved. Product team will definitely plan to provide a fix against this issue as per their development schedule and as soon as we have some certain news regarding its resolution, we will inform you. Please be patient and spare us little time.

We are sorry for the inconvenience.

9

@Michael08

Thanks for your patience.

Our product team has further investigated the earlier logged issue and as per their feedback, this was not a bug. Please note that the conversion of a PDF document to a PDF/A document, is done by deleting and updating a lot of existing objects and adding new objects that breaks the existing digital signature. Even incremental update mechanism is not allowed here as it accepts very limited updates, such as adding comments.

In event of any further query, please feel free to contact us.