bookmarks_outline_levels property

OutlineOptions.bookmarks_outline_levels property

Allows to specify individual bookmarks outline level.

@property
def bookmarks_outline_levels(self) -> aspose.words.saving.BookmarksOutlineLevelCollection:
    ...

Remarks

If bookmark level is not specified in this collection then OutlineOptions.default_bookmarks_outline_level value is used.

Examples

Shows how to set outline levels for bookmarks.

doc = aw.Document()
builder = aw.DocumentBuilder(doc)

# Insert a bookmark with another bookmark nested inside it.
builder.start_bookmark("Bookmark 1")
builder.writeln("Text inside Bookmark 1.")

builder.start_bookmark("Bookmark 2")
builder.writeln("Text inside Bookmark 1 and 2.")
builder.end_bookmark("Bookmark 2")

builder.writeln("Text inside Bookmark 1.")
builder.end_bookmark("Bookmark 1")

# Insert another bookmark.
builder.start_bookmark("Bookmark 3")
builder.writeln("Text inside Bookmark 3.")
builder.end_bookmark("Bookmark 3")

# When saving to .pdf, bookmarks can be accessed via a drop-down menu and used as anchors by most readers.
# Bookmarks can also have numeric values for outline levels,
# enabling lower level outline entries to hide higher-level child entries when collapsed in the reader.
pdf_save_options = aw.saving.PdfSaveOptions()
outline_levels = pdf_save_options.outline_options.bookmarks_outline_levels

outline_levels.add("Bookmark 1", 1)
outline_levels.add("Bookmark 2", 2)
outline_levels.add("Bookmark 3", 3)

self.assertEqual(3, outline_levels.count)
self.assertTrue(outline_levels.contains("Bookmark 1"))
self.assertEqual(1, outline_levels[0])
self.assertEqual(2, outline_levels.get_by_name("Bookmark 2"))
self.assertEqual(2, outline_levels.index_of_key("Bookmark 3"))

# We can remove two elements so that only the outline level designation for "Bookmark 1" is left.
outline_levels.remove_at(2)
outline_levels.remove("Bookmark 2")

# There are nine outline levels. Their numbering will be optimized during the save operation.
# In this case, levels "5" and "9" will become "2" and "3".
outline_levels.add("Bookmark 2", 5)
outline_levels.add("Bookmark 3", 9)

doc.save(ARTIFACTS_DIR + "BookmarksOutlineLevelCollection.bookmark_levels.pdf", pdf_save_options)

# Emptying this collection will preserve the bookmarks and put them all on the same outline level.
outline_levels.clear()

See Also

OutlineOptions constructor OutlineOptions.create_missing_outline_levels property