What is the problem?
By using PDFBOX I tried to tag a link which contains annotation. The PDF creating sample code is here. I tagged a nested paragraph link by using PDFBOX. The newly created tagged PDF is passing the Adobe checker.
What I observed?
After tagging pdf I tried to read it using JAWS. But unfortunately the jaws is not reading links in both "entire document mode" and "read currently visible page" mode. Then I jumped to StructTree Root and compared with adobe created tagged PDF vs our tagged PDF. The ParentTree(NUMTree) is not matching with adobe tagged pdf.
What I Tried?
I tried to replicate the adobe numtree in my pdf. Almost I am able to create same but except one object.
Above image left side is adobe tagged and right side is created by me. I didn't understand the adobe why it is created entire structtree under this (142 O R) object? I am adding annotation object to TumTree by using this code
private void addWidgetContent(PDObjectReference objectReference, PDStructureElement fieldElem, String type, int pageIndex) {
COSDictionary annotDict = new COSDictionary();
COSArray annotArray = new COSArray();
annotArray.add(COSInteger.get(currentMCID));
annotArray.add(objectReference);
annotDict.setItem(COSName.K, annotArray);
annotDict.setString(COSName.LANG, "EN-US");
annotDict.setItem(COSName.P, currentElem.getCOSObject());
annotDict.setItem(COSName.PG, pages.get(pageIndex).getCOSObject());
annotDict.setName(COSName.S, type);
annotDicts.add(annotDict);
setNextMarkedContentDictionary();
numDictionaries.add(annotDict);
fieldElem.appendKid(objectReference);
currentElem.appendKid(fieldElem);
}And one more bug I saw in Adobe preflight is
How can I fix these bugs and what is the correct way of tagging link annotation to be read by JAWS? Please help me .......
I got some update to share. Now I crated parent tree root without having any bugs. Here the file tagged pdf file.
Still this tagged pdf not reading links. Why ?????????