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https://issues.apache.org/jira/browse/PDFBOX-3396?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Fabio reopened PDFBOX-3396:
---------------------------
Hallo,
sorry for my reopen of this issue but, last week, I'd got another problem with
function flattening of the AcroForm class, similar about of previous problem
that I met.
Currently, We're using the following version of the PDFBox artifact:
2.0.3-SNAPSHOT
And every signed document printed out, generates an excellent print. Everything
thanks to the fix published after the close of JIRA PDFBOX-3396. Now, We've got
another strange situation: when I'm using
getAcroForm().flatten(); method on documents with three signs
ETSI.CAdES.detached, the printed out pdf files, are generated with only one
sign printed. In other words, two signs on total of three disappear on printed
pdf files.
That situation, is sistematically on a lot of signed documents, recently
printed with our procedure that use PDFBox.
The code is the same of the last time(after the good revisione of Maruan! With
no refreshAppearances method call) and now, I attached example pdf file like
last time.
Thank you for your patience, support and sorry for my poor English.
Best regards,
Fabio Evangelista
> flattaning AcroForm with visible sign field ETSI.CAdES.detached
> ---------------------------------------------------------------
>
> Key: PDFBOX-3396
> URL: https://issues.apache.org/jira/browse/PDFBOX-3396
> Project: PDFBox
> Issue Type: Bug
> Components: AcroForm
> Affects Versions: 2.0.1, 2.0.2
> Environment: Java 8 - Spring Boot
> Reporter: Fabio
> Priority: Critical
> Fix For: 2.0.3, 2.1.0
>
> Attachments: Signed-Document-1.pdf, Signed-Document-2.pdf,
> Signed-Document-Flattened-1.pdf, Signed-Document-Flattened-2.pdf,
> Signed-Document-Flattened.pdf, Signed-Document.pdf
>
>
> Hallo,
> I've got a problem with the flattaning function of AcroForm class of a
> PDSignatureField. I've a signed pdf document with ETSI.CAdES.detached visible
> image at bottom of the file. I want to flattan the PDSignatureField of the
> sign to eliminate sign cryptography element of the field and to embad the
> sign marker immage of the sign, in the same position of the original immage
> that is a part of the marker sign ETSI.CAdES.detached. I try this way(pseudo
> code similare to real code):
> {code}
> PDDocument pdDoc = PDDocument.load("signed-document.pdf");
> PDDocumentCatalog pdCatalog = pdDoc.getDocumentCatalog();
> PDAcroForm acroForm = pdCatalog.getAcroForm();
> List<PDField> fields = acroForm.getFields();
> fields.stream().filter(pf ->
> pf.getFieldType().toLowerCase().contains("sig")).forEach(pf -> {
> try {
> PDSignatureField pfs = ((PDSignatureField)(pf));
>
> log.info("START remove Sign Flags");
> pfs.setReadOnly(true);
> pfs.setRequired(false);
> pfs.setNoExport(true);
> log.info("END remove Sign Flags");
>
> log.info("START flatten field");
> pfs.getAcroForm().flatten();
> pfs.getAcroForm().refreshAppearances();
> log.info("END flatten field");
>
> } catch (Exception ex) {
> log.error("flattenFile --> Error: " + ex.getMessage());
> throw new RuntimeException(ex);
> }
> });
> ByteArrayOutputStream baos = new ByteArrayOutputStream();
> pdDoc.save(baos);
> .
> .
> .
> {code}
> At the and of the process, the pdf file in output, has no sign cryptography
> element, but the visible marker immage of the sign is placed in a wrong
> position, on top of sign above paragraph of the document and not in original
> position of the signed marker immage. That's happen when i call the following
> method:
> {code}
> pfs.getAcroForm().flatten();
> {code}
> In other words, the flattened pdf of the original signed pdf, has in a
> correct way no more sign inside but, the immage of the ETSI.CAdES.detached
> signe is embedded in a wrong position, over the text of the nearest above
> paragraph of the pdf document.
> My questions are:
> 1-My way, is the correct way to flattan a signed ETSI.CAdES.detached file?
> 2-Is there a method to remove CadES/PadES sign with a official visible marker
> image and, embad immage in the acctual original position in pdf file?
> Thank you for your support and sorry for my poor English.
> Best regards,
> Fabio Evangelista
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