Further to my previous post, the EditableRangeStart class represents a start of an editable range in a Word document. EditableRangeEnd class represents an end of an editable range in a Word document.
A complete editable range in a Word document consists of a EditableRangeStart and a matching EditableRangeEnd with the same Id. EditableRangeStart and EditableRangeEnd are just markers inside a document that specify where the editable range starts and ends.
As a workaround of this issue, you can use the following code snippet to get the desired output.
System.out.println("Number of headers after removeAllChildren: " + newDocument.getFirstSection().getHeadersFooters().getCount());
doc.getFirstSection().getPageSetup().setSectionStart(SectionStart.CONTINUOUS);
newDocument.appendDocument(doc, ImportFormatMode.KEEP_SOURCE_FORMATTING);
newDocument.getSections().get(1).getHeadersFooters().linkToPrevious(true);
// code to workaround this issue start
newDocument.protect(ProtectionType.READ_ONLY);
DocumentBuilder builder = new DocumentBuilder(newDocument);
builder.moveToDocumentStart();
builder.startEditableRange();
builder.moveToDocumentEnd();
builder.endEditableRange();
// code to workaround this issue end
newDocument.save(MyDir + "output.docx", com.aspose.words.SaveFormat.DOCX);