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import re
from fpdf import FPDF
class PDF(FPDF):
def header(self):
self.set_font("Arial", "B", 12)
self.cell(0, 10, "", 0, 1, "C")
def footer(self):
self.set_y(-15)
self.set_font("Arial", "I", 8)
self.cell(0, 10, f"Page {self.page_no()}", 0, 0, "C")
def sanitize_content(content):
try:
# Use 'utf-8' encoding to handle Unicode characters
encoded_content = content.encode('utf-8', 'ignore').decode('utf-8')
return encoded_content
except UnicodeEncodeError as e:
print(f"Encoding error: {e}")
# Remove problematic characters using 'ascii' encoding
sanitized_content = content.encode('ascii', 'ignore').decode('ascii')
return sanitized_content
def replace_problematic_characters(content):
# Replace or remove problematic characters
replacements = {
'\u2013': '-', # en dash to hyphen
'\u2014': '--', # en dash to double hyphen
'\u2018': "'", # left single quotation mark to apostrophe
'\u2019': "'", # right single quotation mark to apostrophe
'\u201c': '"', # left double quotation mark to double quote
'\u201d': '"', # right double quotation mark to double quote
'\u2026': '...', # horizontal ellipsis
'\u2010': '-', # dash
'\u2022': '*', # bullet
'\u2122': 'TM' # TradeMark Symbol
}
for char, replacement in replacements.items():
content = content.replace(char, replacement)
return content
def generate_pdf_from_md(content, filename='output.pdf'):
try:
pdf = PDF()
pdf.add_page()
pdf.set_auto_page_break(auto=True, margin=15)
pdf.set_font('Arial', '', 12)
sanitized_content = sanitize_content(content)
sanitized_content = replace_problematic_characters(sanitized_content)
lines = sanitized_content.split('\n')
for line in lines:
if line.startswith('#'):
header_level = min(line.count('#'), 4)
header_text = re.sub(r'\*{2,}', '', line.strip('# ').strip())
pdf.set_font('Arial', 'B', 12 + (4 - header_level) * 2)
pdf.multi_cell(0, 10, header_text)
pdf.set_font('Arial', '', 12)
else:
parts = re.split(r'(\*\*\*.*?\*\*\*|\*\*.*?\*\*|\*.*?\*|\[.*?\]\(.*?\)|\([^ ]+?\))', line)
for part in parts:
if re.match(r'\*\*\*.*?\*\*\*', part): # Bold Italic
text = part.strip('*')
pdf.set_font('Arial', 'BI', 12)
pdf.write(10, text)
elif re.match(r'\*\*.*?\*\*', part): # Bold
text = part.strip('*')
pdf.set_font('Arial', 'B', 12)
pdf.write(10, text)
elif re.match(r'\*.*?\*', part): # Italic
text = part.strip('*')
pdf.set_font('Arial', 'I', 12)
pdf.write(10, text)
elif re.match(r'\[.*?\]\(.*?\)', part): # Markdown-style link
display_text = re.search(r'\[(.*?)\]', part).group(1)
url = re.search(r'\((.*?)\)', part).group(1)
pdf.set_text_color(0, 0, 255) # Set text color to blue
pdf.set_font('', 'U')
pdf.write(10, display_text, url)
pdf.set_text_color(0, 0, 0) # Reset text color
pdf.set_font('Arial', '', 12)
# elif re.match(r'\([^ ]+?\)', part): # Plain URL
# url = part[1:-1]
# pdf.set_text_color(0, 0, 255) # Set text color to blue
# pdf.set_font('', 'U')
# pdf.write(10, url, url)
else:
pdf.write(10, part)
pdf.set_text_color(0, 0, 0) # Reset text color
pdf.set_font('Arial', '', 12) # Reset font
pdf.ln(10)
pdf.output(filename)
return f"PDF generated: {filename}"
except Exception as e:
return f"Error generating PDF: {e}" |