Atur Properti Elemen Struktur Tagged PDF di Python
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Elemen struktur mendefinisikan hierarki semantik dari sebuah dokumen PDF, seperti bagian, judul, paragraf, atau tabel. Dengan mengatur properti seperti title, language, alternative_text, actual_text, dan expansion_text, Anda meningkatkan aksesibilitas dan makna semantik PDF untuk teknologi bantu seperti pembaca layar.
Potongan kode berikut menunjukkan cara mengatur properti elemen struktur dari Dokumen Tagged PDF:
- Buat dokumen tagged PDF baru.
- Atur metadata dokumen.
- Buat elemen struktur.
- Atur properti aksesibilitas.
- Simpan PDF ber-tag.
import aspose.pdf as ap
import sys
from os import path
def set_properties(outfile):
# Create PDF Document
with ap.Document() as document:
# Get Content for work with Tagged PDF
tagged_content = document.tagged_content
# Set Title and Language for Document
tagged_content.set_title("Tagged Pdf Document")
tagged_content.set_language("en-US")
# Create Structure Elements
root_element = tagged_content.root_element
section_element = tagged_content.create_sect_element()
root_element.append_child(section_element, True)
header_element = tagged_content.create_header_element(1)
section_element.append_child(header_element, True)
header_element.set_text("The Header")
header_element.title = "Title"
header_element.language = "en-US"
header_element.alternative_text = "Alternative Text"
header_element.expansion_text = "Expansion Text"
header_element.actual_text = "Actual Text"
# Save Tagged PDF Document
document.save(outfile)
Mengatur Elemen Struktur Teks
Untuk mengatur elemen struktur teks dari Tagged PDF Document, Aspose.PDF menawarkan Elemen Paragraf kelas. Cuplikan kode berikut menunjukkan cara mengatur elemen struktur teks dari Tagged PDF Document:
import aspose.pdf as ap
import sys
from os import path
def set_text_elements(outfile):
# Create PDF Document
with ap.Document() as document:
# Get Content for work with Tagged PDF
tagged_content = document.tagged_content
# Set Title and Language for Document
tagged_content.set_title("Tagged Pdf Document")
tagged_content.set_language("en-US")
# Get Root Structure Elements
root_element = tagged_content.root_element
paragraph_element = tagged_content.create_paragraph_element()
# Set Text to Text Structure Element
paragraph_element.set_text("Paragraph.")
root_element.append_child(paragraph_element, True)
# Save Tagged PDF Document
document.save(outfile)
Mengatur Elemen Struktur Blok Teks
Contoh Python ini menggunakan Aspose.PDF untuk membuat Tagged PDF yang mencakup hierarki terstruktur dari header dan paragraf, meningkatkan fitur semantik dan aksesibilitas dokumen.
- Buat dokumen tagged PDF baru.
- Atur metadata dokumen.
- Akses elemen struktur root.
- Buat header multi-tingkat.
- Tambahkan header ke struktur root.
- Buat elemen paragraf.
- Tambahkan paragraf ke struktur akar.
- Simpan PDF ber-tag.
Potongan kode berikut menunjukkan cara mengatur elemen struktur blok teks dari Dokumen Tagged PDF:
import aspose.pdf as ap
import sys
from os import path
def set_text_block_elements(outfile):
# Create PDF Document
with ap.Document() as document:
# Get Content for work with Tagged PDF
tagged_content = document.tagged_content
# Set Title and Language for Document
tagged_content.set_title("Tagged Pdf Document")
tagged_content.set_language("en-US")
# Get Root Structure Element
root_element = tagged_content.root_element
h1 = tagged_content.create_header_element(1)
h2 = tagged_content.create_header_element(2)
h3 = tagged_content.create_header_element(3)
h4 = tagged_content.create_header_element(4)
h5 = tagged_content.create_header_element(5)
h6 = tagged_content.create_header_element(6)
h1.set_text("H1. Header of Level 1")
h2.set_text("H2. Header of Level 2")
h3.set_text("H3. Header of Level 3")
h4.set_text("H4. Header of Level 4")
h5.set_text("H5. Header of Level 5")
h6.set_text("H6. Header of Level 6")
root_element.append_child(h1, True)
root_element.append_child(h2, True)
root_element.append_child(h3, True)
root_element.append_child(h4, True)
root_element.append_child(h5, True)
root_element.append_child(h6, True)
p = tagged_content.create_paragraph_element()
p.set_text(
"P. Lorem ipsum dolor sit amet, consectetur adipiscing elit. "
"Aenean nec lectus ac sem faucibus imperdiet. Sed ut erat ac magna ullamcorper hendrerit."
" Cras pellentesque libero semper, gravida magna sed, luctus leo. "
"Fusce lectus odio, laoreet nec ullamcorper ut, molestie eu elit. "
"Interdum et malesuada fames ac ante ipsum primis in faucibus. "
"Aliquam lacinia sit amet elit ac consectetur. "
"Donec cursus condimentum ligula, vitae volutpat sem tristique eget. "
"Nulla in consectetur massa. Vestibulum vitae lobortis ante. "
"Nulla ullamcorper pellentesque justo rhoncus accumsan. "
"Mauris ornare eu odio non lacinia. Aliquam massa leo, rhoncus ac iaculis eget, tempus et magna. "
"Sed non consectetur elit. Sed vulputate, quam sed lacinia luctus, ipsum nibh fringilla purus, "
"vitae posuere risus odio id massa. Cras sed venenatis lacus."
)
root_element.append_child(p, True)
# Save Tagged PDF Document
document.save(outfile)
Pengaturan Elemen Struktur Inline
Buat elemen teks inline (/Span) dalam header dan paragraf pada PDF ber‑tag menggunakan Aspose.PDF for Python via .NET.
Potongan kode berikut menunjukkan cara mengatur elemen struktur inline dari Dokumen Tagged PDF:
import aspose.pdf as ap
import sys
from os import path
def set_inline_elements(outfile):
# Create PDF Document
with ap.Document() as document:
# Get Content for work with Tagged PDF
tagged_content = document.tagged_content
# Set Title and Language for Document
tagged_content.set_title("Tagged Pdf Document")
tagged_content.set_language("en-US")
# Get Root Structure Element
root_element = tagged_content.root_element
header_element_h1 = tagged_content.create_header_element(1)
header_element_h2 = tagged_content.create_header_element(2)
header_element_h3 = tagged_content.create_header_element(3)
header_element_h4 = tagged_content.create_header_element(4)
header_element_h5 = tagged_content.create_header_element(5)
header_element_h6 = tagged_content.create_header_element(6)
root_element.append_child(header_element_h1, True)
root_element.append_child(header_element_h2, True)
root_element.append_child(header_element_h3, True)
root_element.append_child(header_element_h4, True)
root_element.append_child(header_element_h5, True)
root_element.append_child(header_element_h6, True)
span_element_h11 = tagged_content.create_span_element()
span_element_h11.set_text("H1. ")
header_element_h1.append_child(span_element_h11, True)
span_element_h12 = tagged_content.create_span_element()
span_element_h12.set_text("Level 1 Header")
header_element_h1.append_child(span_element_h12, True)
span_element_h21 = tagged_content.create_span_element()
span_element_h21.set_text("H2. ")
header_element_h2.append_child(span_element_h21, True)
span_element_h22 = tagged_content.create_span_element()
span_element_h22.set_text("Level 2 Header")
header_element_h2.append_child(span_element_h22, True)
span_element_h31 = tagged_content.create_span_element()
span_element_h31.set_text("H3. ")
header_element_h3.append_child(span_element_h31, True)
span_element_h32 = tagged_content.create_span_element()
span_element_h32.set_text("Level 3 Header")
header_element_h3.append_child(span_element_h32, True)
span_element_h41 = tagged_content.create_span_element()
span_element_h41.set_text("H4. ")
header_element_h4.append_child(span_element_h41, True)
span_element_h42 = tagged_content.create_span_element()
span_element_h42.set_text("Level 4 Header")
header_element_h4.append_child(span_element_h42, True)
span_element_h51 = tagged_content.create_span_element()
span_element_h51.set_text("H5. ")
header_element_h5.append_child(span_element_h51, True)
span_element_h52 = tagged_content.create_span_element()
span_element_h52.set_text("Level 5 Header")
header_element_h5.append_child(span_element_h52, True)
span_element_h61 = tagged_content.create_span_element()
span_element_h61.set_text("H6. ")
header_element_h6.append_child(span_element_h61, True)
span_element_h62 = tagged_content.create_span_element()
span_element_h62.set_text("Level 6 Header")
header_element_h6.append_child(span_element_h62, True)
paragraph_element = tagged_content.create_paragraph_element()
paragraph_element.set_text("P. ")
root_element.append_child(paragraph_element, True)
span_element_1 = tagged_content.create_span_element()
span_element_1.set_text(
"Lorem ipsum dolor sit amet, consectetur adipiscing elit. "
)
paragraph_element.append_child(span_element_1, True)
span_element_2 = tagged_content.create_span_element()
span_element_2.set_text("Aenean nec lectus ac sem faucibus imperdiet. ")
paragraph_element.append_child(span_element_2, True)
span_element_3 = tagged_content.create_span_element()
span_element_3.set_text("Sed ut erat ac magna ullamcorper hendrerit. ")
paragraph_element.append_child(span_element_3, True)
span_element_4 = tagged_content.create_span_element()
span_element_4.set_text(
"Cras pellentesque libero semper, gravida magna sed, luctus leo. "
)
paragraph_element.append_child(span_element_4, True)
span_element_5 = tagged_content.create_span_element()
span_element_5.set_text(
"Fusce lectus odio, laoreet nec ullamcorper ut, molestie eu elit. "
)
paragraph_element.append_child(span_element_5, True)
span_element_6 = tagged_content.create_span_element()
span_element_6.set_text(
"Interdum et malesuada fames ac ante ipsum primis in faucibus. "
)
paragraph_element.append_child(span_element_6, True)
span_element_7 = tagged_content.create_span_element()
span_element_7.set_text(
"Aliquam lacinia sit amet elit ac consectetur. Donec cursus condimentum ligula, vitae volutpat sem tristique eget. "
)
paragraph_element.append_child(span_element_7, True)
span_element_8 = tagged_content.create_span_element()
span_element_8.set_text(
"Nulla in consectetur massa. Vestibulum vitae lobortis ante. Nulla ullamcorper pellentesque justo rhoncus accumsan. "
)
paragraph_element.append_child(span_element_8, True)
span_element_9 = tagged_content.create_span_element()
span_element_9.set_text(
"Mauris ornare eu odio non lacinia. Aliquam massa leo, rhoncus ac iaculis eget, tempus et magna. Sed non consectetur elit. "
)
paragraph_element.append_child(span_element_9, True)
span_element_10 = tagged_content.create_span_element()
span_element_10.set_text(
"Sed vulputate, quam sed lacinia luctus, ipsum nibh fringilla purus, vitae posuere risus odio id massa. Cras sed venenatis lacus."
)
paragraph_element.append_child(span_element_10, True)
# Save Tagged PDF Document
document.save(outfile)
Mengatur Nama Tag Kustom
Tetapkan Nama Tag Kustom untuk Struktur dan Elemen Inline dalam Tagged PDF Menggunakan Aspose.PDF untuk Python.
Potongan kode berikut menunjukkan cara mengatur nama tag khusus:
- Buat dokumen tagged PDF baru.
- Atur metadata dokumen.
- Buat elemen section.
- Buat elemen paragraf dengan tag khusus.
- Buat elemen span inline dengan tag khusus.
- Simpan PDF ber-tag.
import aspose.pdf as ap
import sys
from os import path
def set_tag_name(outfile):
# Create PDF Document
with ap.Document() as document:
# Get Content for work with Tagged PDF
tagged_content = document.tagged_content
# Set Title and Language for Document
tagged_content.set_title("Tagged Pdf Document")
tagged_content.set_language("en-US")
# Create Logical Structure Elements
section_element = tagged_content.create_sect_element()
tagged_content.root_element.append_child(section_element, True)
paragraph_element1 = tagged_content.create_paragraph_element()
paragraph_element2 = tagged_content.create_paragraph_element()
paragraph_element3 = tagged_content.create_paragraph_element()
paragraph_element4 = tagged_content.create_paragraph_element()
paragraph_element1.set_text("P1. ")
paragraph_element2.set_text("P2. ")
paragraph_element3.set_text("P3. ")
paragraph_element4.set_text("P4. ")
paragraph_element1.set_tag("P1")
paragraph_element2.set_tag("Para")
paragraph_element3.set_tag("Para")
paragraph_element4.set_tag("Paragraph")
section_element.append_child(paragraph_element1, True)
section_element.append_child(paragraph_element2, True)
section_element.append_child(paragraph_element3, True)
section_element.append_child(paragraph_element4, True)
span_element1 = tagged_content.create_span_element()
span_element2 = tagged_content.create_span_element()
span_element3 = tagged_content.create_span_element()
span_element4 = tagged_content.create_span_element()
span_element1.set_text("Span 1.")
span_element2.set_text("Span 2.")
span_element3.set_text("Span 3.")
span_element4.set_text("Span 4.")
span_element1.set_tag("SPAN")
span_element2.set_tag("Sp")
span_element3.set_tag("Sp")
span_element4.set_tag("TheSpan")
paragraph_element1.append_child(span_element1, True)
paragraph_element2.append_child(span_element2, True)
paragraph_element3.append_child(span_element3, True)
paragraph_element4.append_child(span_element4, True)
# Save Tagged PDF Document
document.save(outfile)
Menambahkan Elemen Struktur ke dalam Elemen
Fitur ini didukung oleh versi 19.4 atau lebih tinggi.
Buat tautan dan elemen gambar dalam PDF bertag menggunakan Aspose.PDF for Python via .NET.
Potongan kode berikut menunjukkan cara mengatur elemen struktur dalam paragraf dengan teks Dokumen Tagged PDF:
import aspose.pdf as ap
import sys
from os import path
def set_elements(imagefile, outfile):
# Create PDF document
with ap.Document() as document:
tagged_content = document.tagged_content
# Setting Title and Nature Language for document
tagged_content.set_title("Link Elements Example")
tagged_content.set_language("en-US")
# Getting Root structure element (Document structure element)
root_element = tagged_content.root_element
paragraph_element_1 = tagged_content.create_paragraph_element()
root_element.append_child(paragraph_element_1, True)
link_element_1 = tagged_content.create_link_element()
paragraph_element_1.append_child(link_element_1, True)
link_element_1.hyperlink = ap.WebHyperlink("http://google.com")
link_element_1.set_text("Google")
link_element_1.alternate_descriptions = "Link to Google"
paragraph_element_2 = tagged_content.create_paragraph_element()
root_element.append_child(paragraph_element_2, True)
link_element_2 = tagged_content.create_link_element()
paragraph_element_2.append_child(link_element_2, True)
link_element_2.hyperlink = ap.WebHyperlink("http://google.com")
span_element_2 = tagged_content.create_span_element()
span_element_2.set_text("Google")
link_element_2.append_child(span_element_2, True)
link_element_2.alternate_descriptions = "Link to Google"
paragraph_element_3 = tagged_content.create_paragraph_element()
root_element.append_child(paragraph_element_3, True)
link_element_3 = tagged_content.create_link_element()
paragraph_element_3.append_child(link_element_3, True)
link_element_3.hyperlink = ap.WebHyperlink("http://google.com")
span_element_31 = tagged_content.create_span_element()
span_element_31.set_text("G")
span_element_32 = tagged_content.create_span_element()
span_element_32.set_text("Google")
link_element_3.append_child(span_element_31, True)
link_element_3.set_text("-")
link_element_3.append_child(span_element_32, True)
link_element_3.alternate_descriptions = "Link to Google"
paragraph_element_4 = tagged_content.create_paragraph_element()
root_element.append_child(paragraph_element_4, True)
link_element_4 = tagged_content.create_link_element()
paragraph_element_4.append_child(link_element_4, True)
link_element_4.hyperlink = ap.WebHyperlink("http://google.com")
link_element_4.set_text(
"The multiline link: Google Google Google Google Google Google Google Google Google Google Google Google Google Google Google Google Google Google Google Google"
)
link_element_4.alternate_descriptions = "Link to Google (multiline)"
paragraph_element_5 = tagged_content.create_paragraph_element()
root_element.append_child(paragraph_element_5, True)
link_element_5 = tagged_content.create_link_element()
paragraph_element_5.append_child(link_element_5, True)
link_element_5.hyperlink = ap.WebHyperlink("http://google.com")
figure_element_5 = tagged_content.create_figure_element()
figure_element_5.set_image(imagefile, 1200)
figure_element_5.alternative_text = "Google icon"
link_layout_attributes = link_element_5.attributes.get_attributes(
ap.logicalstructure.AttributeOwnerStandard.LAYOUT
)
placement_attribute = ap.logicalstructure.StructureAttribute(
ap.logicalstructure.AttributeKey.PLACEMENT
)
placement_attribute.set_name_value(
ap.logicalstructure.AttributeName.PLACEMENT_BLOCK
)
link_layout_attributes.set_attribute(placement_attribute)
link_element_5.append_child(figure_element_5, True)
link_element_5.alternate_descriptions = "Link to Google"
# Save Tagged PDF Document
document.save(outfile)
Pengaturan Elemen Struktur Tautan
Aspose.PDF for Python via .NET API juga memungkinkan Anda menambahkan elemen struktur tautan.
Cuplikan kode berikut menunjukkan cara menambahkan elemen struktur tautan ke Dokumen Tagged PDF:
import aspose.pdf as ap
import sys
from os import path
def add_link_element(outfile):
# Create PDF document
with ap.Document() as document:
tagged_content = document.tagged_content
# Setting Title and Nature Language for document
tagged_content.set_title("Text Elements Example")
tagged_content.set_language("en-US")
# Getting Root structure element (Document structure element)
root_element = tagged_content.root_element
paragraph_element_1 = tagged_content.create_paragraph_element()
root_element.append_child(paragraph_element_1, True)
span_element_11 = tagged_content.create_span_element()
span_element_11.set_text("Span_11")
span_element_12 = tagged_content.create_span_element()
span_element_12.set_text(" and Span_12.")
paragraph_element_1.set_text("Paragraph with ")
paragraph_element_1.append_child(span_element_11, True)
paragraph_element_1.append_child(span_element_12, True)
paragraph_element_2 = tagged_content.create_paragraph_element()
root_element.append_child(paragraph_element_2, True)
span_element_21 = tagged_content.create_span_element()
span_element_21.set_text("Span_21")
span_element_22 = tagged_content.create_span_element()
span_element_22.set_text("Span_22.")
paragraph_element_2.append_child(span_element_21, True)
paragraph_element_2.set_text(" and ")
paragraph_element_2.append_child(span_element_22, True)
paragraph_element_3 = tagged_content.create_paragraph_element()
root_element.append_child(paragraph_element_3, True)
span_element_31 = tagged_content.create_span_element()
span_element_31.set_text("Span_31")
span_element_32 = tagged_content.create_span_element()
span_element_32.set_text(" and Span_32")
paragraph_element_3.append_child(span_element_31, True)
paragraph_element_3.append_child(span_element_32, True)
paragraph_element_3.set_text(".")
paragraph_element_4 = tagged_content.create_paragraph_element()
root_element.append_child(paragraph_element_4, True)
span_element_41 = tagged_content.create_span_element()
span_element_411 = tagged_content.create_span_element()
span_element_411.set_text("Span_411, ")
span_element_41.set_text("Span_41, ")
span_element_41.append_child(span_element_411, True)
span_element_42 = tagged_content.create_span_element()
span_element_421 = tagged_content.create_span_element()
span_element_421.set_text("Span 421 and ")
span_element_42.append_child(span_element_421, True)
span_element_42.set_text("Span_42")
paragraph_element_4.append_child(span_element_41, True)
paragraph_element_4.append_child(span_element_42, True)
paragraph_element_4.set_text(".")
# Save Tagged PDF Document
document.save(outfile)
Pengaturan Elemen Struktur Catatan
API Aspose.PDF for Python via .NET juga memungkinkan Anda untuk menambahkan ElemenCatatan pada dokumen Tagged PDF. Potongan kode berikut menunjukkan cara menambahkan elemen catatan dalam Tagged PDF Document:
import aspose.pdf as ap
import sys
from os import path
def set_note_element(outfile):
# Create PDF Document
with ap.Document() as document:
tagged_content = document.tagged_content
tagged_content.set_title("Sample of Note Elements")
tagged_content.set_language("en-US")
# Add Paragraph Element
paragraph_element = tagged_content.create_paragraph_element()
tagged_content.root_element.append_child(paragraph_element, True)
# Add NoteElement
note_element_1 = tagged_content.create_note_element()
paragraph_element.append_child(note_element_1, True)
note_element_1.set_text("Note with auto generate ID. ")
# Add NoteElement
note_element_2 = tagged_content.create_note_element()
paragraph_element.append_child(note_element_2, True)
note_element_2.set_text("Note with ID = 'note_002'. ")
note_element_2.set_id("note_002")
# Add NoteElement
note_element_3 = tagged_content.create_note_element()
paragraph_element.append_child(note_element_3, True)
note_element_3.set_text("Note with ID = 'note_003'. ")
note_element_3.set_id("note_003")
# Must throw exception - Aspose.Pdf.Tagged.TaggedException : Structure element with ID='note_002' already exists
# note_element_3.set_id("note_002")
# Resultant document does not compliance to PDF/UA If ClearId() used for Note Structure Element
# note_element_3.clear_id()
# Save Tagged PDF Document
document.save(outfile)
Cara mengatur Bahasa dan Judul
Aspose.PDF for Python via .NET API juga memungkinkan Anda mengatur bahasa dan judul untuk sebuah dokumen sesuai spesifikasi PDF/UA. Bahasa dapat diatur untuk seluruh dokumen maupun untuk elemen struktural terpisahnya. Potongan kode berikut menunjukkan cara mengatur bahasa dan judul dalam Dokumen Tagged PDF:
- Buat dokumen tagged PDF baru.
- Atur judul dokumen dan bahasa.
- Buat elemen header.
- Tambahkan paragraf dengan bahasa tertentu.
- Simpan PDF ber-tag.
import aspose.pdf as ap
import sys
from os import path
def set_language_and_title(outfile):
# Create PDF Document
with ap.Document() as document:
# Get TaggedContent
tagged_content = document.tagged_content
# Set Title and Language
tagged_content.set_title("Example Tagged Document")
tagged_content.set_language("en-US")
# Header (en-US, inherited from document)
header_element = tagged_content.create_header_element(1)
header_element.set_text("Phrase on different languages")
tagged_content.root_element.append_child(header_element, True)
# Paragraph (English)
paragraph_element_en = tagged_content.create_paragraph_element()
paragraph_element_en.set_text("Hello, World!")
paragraph_element_en.language = "en-US"
tagged_content.root_element.append_child(paragraph_element_en, True)
# Paragraph (German)
paragraph_element_de = tagged_content.create_paragraph_element()
paragraph_element_de.set_text("Hallo Welt!")
paragraph_element_de.language = "de-DE"
tagged_content.root_element.append_child(paragraph_element_de, True)
# Paragraph (French)
paragraph_element_fr = tagged_content.create_paragraph_element()
paragraph_element_fr.set_text("Bonjour le monde!")
paragraph_element_fr.language = "fr-FR"
tagged_content.root_element.append_child(paragraph_element_fr, True)
# Paragraph (Spanish)
paragraph_element_sp = tagged_content.create_paragraph_element()
paragraph_element_sp.set_text("¡Hola Mundo!")
paragraph_element_sp.language = "es-ES"
tagged_content.root_element.append_child(paragraph_element_sp, True)
# Save Tagged PDF Document
document.save(outfile)
Topik Tagged PDF Terkait
- Buat Tagged PDF untuk menghasilkan elemen struktur sebelum memperbarui propertinya.
- Ekstrak Tagged Content dari Tagged PDFs untuk memeriksa node struktur yang ada dan metadata.
- Bekerja dengan Tabel dalam Tagged PDF jika Anda perlu menerapkan properti aksesibel ke struktur tabel.