diff options
Diffstat (limited to 'libqpdf')
| -rw-r--r-- | libqpdf/QPDFAcroFormDocumentHelper.cc | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/libqpdf/QPDFAcroFormDocumentHelper.cc b/libqpdf/QPDFAcroFormDocumentHelper.cc index f2daa0c7..5fdd20ba 100644 --- a/libqpdf/QPDFAcroFormDocumentHelper.cc +++ b/libqpdf/QPDFAcroFormDocumentHelper.cc @@ -416,6 +416,28 @@ QPDFAcroFormDocumentHelper::generateAppearancesIfNeeded() } void +QPDFAcroFormDocumentHelper::disableDigitalSignatures() +{ + std::set<QPDFObjGen> to_remove; + auto fields = getFormFields(); + for (auto& f: fields) { + auto ft = f.getFieldType(); + if (ft == "/Sig") { + auto oh = f.getObjectHandle(); + to_remove.insert(oh.getObjGen()); + // Make this no longer a form field. If it's also an annotation, the annotation will + // survive. If it's only a field and is no longer referenced, it will disappear. + oh.removeKey("/FT"); + // Remove fields that are specific to signature fields. + oh.removeKey("/V"); + oh.removeKey("/SV"); + oh.removeKey("/Lock"); + } + } + removeFormFields(to_remove); +} + +void QPDFAcroFormDocumentHelper::adjustInheritedFields( QPDFObjectHandle obj, bool override_da, |