Hi, I'm a newbie to itext. I'm trying to merge a few pdf generated by
itext. Some of them have bookmarks with kids (2nd level), I do not want
to loose this in the merge so here's what I want to do:
public static ByteArrayOutputStream mergeReports(
ByteArrayOutputStream ... reports) {
ByteArrayOutputStream mergedReport = new ByteArrayOutputStream();
try {
Document document = new Document();
PdfCopy copy = new PdfCopy(document, mergedReport);
document.open();
PdfOutline root = copy.getRootOutline();
copy.setViewerPreferences(PdfWriter.PageModeUseOutlines);
for(ByteArrayOutputStream report : reports) {
if (report != null && report.size() > 0) {
// Create a PDF Reader for each report
PdfReader reader = new PdfReader(report.toByteArray());
int noOfPages = reader.getNumberOfPages();
// Create the outline
@SuppressWarnings("unchecked")
List<HashMap<String, Object>> list =
SimpleBookmark.getBookmark(reader);
PdfOutline outTop = null;
HashMap<String, Object> bookmark = null;
Map<Integer, String> kidBookmarks = new HashMap<Integer, String>();
if (list != null) {
bookmark = list.get(0);
String bookmarkTitle = (String) bookmark.get("Title");
PdfDestination dest = new PdfDestination(PdfDestination.FIT);
outTop = new PdfOutline(root, dest, bookmarkTitle);
List<HashMap<String, String>> kids = (List<HashMap<String,
String>>)bookmark.get("Kids");
if(kids != null) {
// convert this a map where the key is the page number and the
value is the bookmark title
for(HashMap<String, String> kid : kids) {
String title = kid.get("Title");
String page = StringUtils.replace(kid.get("Page"), " Fit", "");
kidBookmarks.put(new Integer(page), title);
}
}
}
for(int i = 1; i <= noOfPages; i++) {
PdfImportedPage importPage = copy.getImportedPage(reader, i);
String bookmarkTitle = kidBookmarks.get(Integer.valueOf(i));
if(StringUtils.isNotBlank(bookmarkTitle)) {
PdfOutline thisOutline = new PdfOutline(outTop, new
PdfDestination(PdfDestination.FIT), bookmarkTitle);
copy.add(thisOutline);
}
copy.addPage(importPage);
}
reader.close();
}
}
document.close();
} catch(Exception ex) {
throw new RuntimeException(ex);
}
return mergedReport;
}
Unfortunately the child outlines DO NOT show up when I look for the kids
in the reader bookmark.
I tested without the kids logic and it works just fine i.e.:
for(int i = 1; i <= noOfPages; i++) {
PdfImportedPage importPage = copy.getImportedPage(reader, i);
PdfDestination dest = new PdfDestination(PdfDestination.FIT);
PdfOutline thisOutline = new PdfOutline(outTop, dest, "test"+i);
// <-- this will show up
copy.add(thisOutline);
copy.addPage(importPage);
}
Then I added something like
for(int i = 1; i <= noOfPages; i++) {
PdfImportedPage importPage = copy.getImportedPage(reader, i);
if(kids != null)
PdfDestination dest = new PdfDestination(PdfDestination.FIT);
PdfOutline thisOutline = new PdfOutline(outTop, dest, "test"+i);
// <-- this now NO LONGER shows up even tho it does stop at my break pt
on this line
copy.add(thisOutline);
}
copy.addPage(importPage);
}
Immediately the 2nd level bookmarks stopped showing up. I do not
understand just by calling bookmark.get("Kids") would have such an
effect?
Maybe I'm seriously missing something here?
Please help. This is driving me crazy for the last four hours :)
Thank you!
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