PdfBookmarkEditor.ExtractBookmarks and CreateBookmarks() are inconsistent

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PdfBookmarkEditor’s two functions, ExtractBookmarks and CreateBookmarks are inconsistent.

For example:

Bookmarks bks = be.ExtractBookmarks(); // let's say this returns a collection of 50 bookmarks
be.DeleteBookmarks(); // now there are 0 bookmarks
foreach ( Bookmark bk in bks )
be.CreateBookmarks( bk );
// now the count should be 50 bookmarks, right?

The answer is… it depends.

If the original bookmarks were structured like this…


  • A1

  • A2


  • B1

  • B2

… the bookmark collection will have a size of 6 when Extracted.

When I do a foreach to recreate them, however, 10 bookmarks will be inserted, because…

A is created with A1 and A2

A1 is created

A2 is created

B is imported with B1 and B2

B1 is created

B2 is created

I cannot imagine this is by design. I think your options are:

  • ExtractBookmarks needs a boolean in an overload that says to get children or not

  • ExtractBookmarks needs better intellisense

  • Both

Further, it is unclear if I’m making changes to A1 in the original collection, if the first ChildItem in A.ChildItem is also modified, since this is the same object.

PdfBookmarkEditor is poorly implemented.

Hello Tim,

Thanks for contacting support and sorry for the delay in response.

We are looking into the details of problems reported above and will get back to you soon. We are sorry for your inconvenience.