Connect Aspose.Pdf.LogicalStructure.HeaderElement to Text Fragment/Paragraph/Section

Aspose.PDF Product Family
1

Hello,

How can I get the paragraphs/text fragments associated to the Element Type: Aspose.Pdf.LogicalStructure.HeaderElement in the attached file. Please see the code below to find the HeaderElement I am speaking of.

    pdf_document = apdf.Document(input_path)
    tagged_content = pdf_document.tagged_content
    struct_tree_root_element = tagged_content.struct_tree_root_element
    struct_tree_root_element_objects = []

    # Function to traverse and print elements
    def traverse_structure(element, level=0, output_file_path=output_path_struct_tree_root_element_objects):
        # print(dir(element))
        element_info = str(
            level) + "  " * level + f"Element Type: {element.get_type()} Parent Element: {element.parent_element} Element: {element}"
        print(element_info)

        # Write to file if output_file_path is provided
        if output_file_path:
            with open(output_file_path, 'a', encoding='utf-8') as f:
                f.write(element_info + "\n")

        for child in element.child_elements:
            struct_tree_root_element_objects.append(child)
            traverse_structure(child, level + 1, output_file_path)

    traverse_structure(struct_tree_root_element)

Thanks!
EU_proposed_AI_regulation_40_Pages.pdf (977.1 KB)

2

@ln22

To associate paragraphs or text fragments with the HeaderElement type in your PDF document, you can traverse the structure of the tagged content and look for the relevant elements. The HeaderElement can be created and appended to the root structure element, and you can also create ParagraphElement instances to hold the text content.

Here’s a sample code snippet that demonstrates how to create header elements and associate them with paragraphs:

from aspose.pdf import Document
from aspose.pdf.logicalstructure import HeaderElement, ParagraphElement

# Load the PDF document
pdf_document = Document(input_path)

# Access the tagged content
tagged_content = pdf_document.tagged_content
root_element = tagged_content.root_element

# Create header elements
header1 = HeaderElement(1)
header1.set_text("Header Level 1")
root_element.append_child(header1)

# Create a paragraph element
paragraph = ParagraphElement()
paragraph.set_text("This is a paragraph associated with Header Level 1.")
root_element.append_child(paragraph)

# Save the modified document
pdf_document.save(output_path)

In this example, a header element of level 1 is created and a paragraph is appended to the root structure element. You can repeat this process for additional headers and paragraphs as needed.

To retrieve the paragraphs associated with a specific HeaderElement, you can implement a traversal function similar to the one you provided, checking for the parent-child relationship between the HeaderElement and ParagraphElement.

If you need further assistance or specific examples, feel free to ask!

3

Please create code to retrieve the paragraphs associated with a specific HeaderElement that is already in a PDF. I do not want to create an headerelements.

4

@ln22

We have opened the following new ticket(s) in our internal issue tracking system and will deliver their fixes according to the terms mentioned in Free Support Policies.

Issue ID(s): PDFPYTHON-395

You can obtain Paid Support Services if you need support on a priority basis, along with the direct access to our Paid Support management team.