python pypdf function to add bookmarks

[standenman]

I have the following code to recast a set of medical records so that the new PDF has bookmarks that reflect the date of medical treatment. The code creates a new PDF (porejemplo.pdf) but when I open it I there are no bookmarks. what am I missing?

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import re import pypdf # Open the PDF file for reading pdf_file = open("C:/Users/stand/Downloads/MyClientVisitDates.pdf", 'rb') pdf_reader = pypdf.PdfReader(pdf_file) pdf_writer = pypdf.PdfWriter() # Define the regular expression for finding the bookmark locations regex = re.compile(r'Visit date: \b\d{2}/\d{2}/\d{4}\b')   # Iterate through the pages of the PDF for i in range(len(pdf_reader.pages)):    page = pdf_reader.pages[i]    text = page.extract_text()    matches = re.finditer(regex, text)    pdf_writer.add_page(page)         for match in matches:     pdf_writer.add_outline_item( title=matches, page_number=page)             # Write the new PDF file with bookmarks output_file = open('porejemplo.pdf', 'wb') pdf_writer.write(output_file) output_file.close() pdf_file.close()

[carecavoador]

I have the following code to recast a set of medical records so that the new PDF has bookmarks that reflect the date of medical treatment. The code creates a new PDF (porejemplo.pdf) but when I open it I there are no bookmarks. what am I missing?

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import re import pypdf # Open the PDF file for reading pdf_file = open("C:/Users/stand/Downloads/MyClientVisitDates.pdf", 'rb') pdf_reader = pypdf.PdfReader(pdf_file) pdf_writer = pypdf.PdfWriter() # Define the regular expression for finding the bookmark locations regex = re.compile(r'Visit date: \b\d{2}/\d{2}/\d{4}\b')   # Iterate through the pages of the PDF for i in range(len(pdf_reader.pages)):    page = pdf_reader.pages[i]    text = page.extract_text()    matches = re.finditer(regex, text)    pdf_writer.add_page(page)         for match in matches:     pdf_writer.add_outline_item( title=matches, page_number=page)             # Write the new PDF file with bookmarks output_file = open('porejemplo.pdf', 'wb') pdf_writer.write(output_file) output_file.close() pdf_file.close()

The function re.finditer() returns a iterator of Match objects. You need to pass a string to the pdf_writer.add_outline_item() function as title parameter.

Also, consider using enumerate to iterate over the PDF pages:

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for page_number, page in enumerate(pdf_reader.pages):     text = page.extract_text()     matches = re.finditer(regex, text)     # You still need to deal with matches here, as you need to pass a string     # to pdf_writer.add_outline_item() as a title.     pdf_writer.add_page(page)       for match in matches:         pdf_writer.add_outline_item(title=matches, page_number=page_number)

[standenman]

Thanks for your response. Still getting a pdf without bookmarks, plus errors in my terminal of the form:

[0, IndirectObject(652, 0, 1775950030224)]
unknown widths :

With this code:

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import re import pypdf # Open the PDF file for reading pdf_file = open("C:/Users/stand/Downloads/SusanJonesVisitDate.pdf", 'rb') pdf_reader = pypdf.PdfReader(pdf_file) pdf_writer = pypdf.PdfWriter() # Define the regular expression for finding the bookmark locations regex = re.compile(r'Visit date: \b\d{2}/\d{2}/\d{4}\b')    for page_number, page in enumerate(pdf_reader.pages):     text = page.extract_text()     matches = re.finditer(regex, text)     # You still need to deal with matches here, as you need to pass a string     # to pdf_writer.add_outline_item() as a title.     pdf_writer.add_page(page)        for match in matches:         pdf_writer.add_outline_item(title=matches, page_number=page_number)          # Write the new PDF file with bookmarks output_file = open('porejemplo22.pdf', 'wb') pdf_writer.write(output_file) output_file.close() pdf_file.close()