Some test text!

Outline treekeyboard_arrow_down

Navigate PDF outline tree in Ruby

To navigate an outline tree and print its result.

def PrintIndent(item)
    indent = item.GetIndent() - 1
    i = 0
    while i < indent do
        print "  "
        i = i + 1
def PrintOutlineTree (item)
    while item.IsValid() do
        if item.IsOpen()
            print( "- " + item.GetTitle() + " ACTION -> ")
            print("+ " + item.GetTitle() + " ACTION -> ")
        if item.HasChildren() 
        item = item.GetNext()
doc =
root = doc.GetFirstBookmark()

Read, add, edit PDF outlines and bookmarks
Full code sample which illustrates how to read and edit existing outline items and create new bookmarks using the high-level API.

About outline tree

A PDF document may display a document outline on the screen, allowing the user to navigate interactively from one part of the document to another. The outline consists of a tree-structured hierarchy of Bookmarks (sometimes called outline items), which serve as a "visual table of contents" to display the document's structure to the user.

Each Bookmark has a title that appears on screen, and an Action that specifies what happens when a user clicks on the Bookmark. The typical Action for a user-created Bookmark is to move to another location in the current document — although any Action can be specified.

Get the answers you need: Support


Free Trial

Get unlimited trial usage of PDFTron SDK to bring accurate, reliable, and fast document processing capabilities to any application or workflow.

Select a platform to get started with your free trial.

Unlimited usage. No email address required.