Render HTML to PDF in Django site

Render HTML to PDF in Django site

To render HTML to PDF in a Django site, you can use a library called weasyprint, which is a popular and powerful tool for converting HTML and CSS into PDF documents. Here's a step-by-step guide on how to set it up and use it in your Django project:

  1. Install weasyprint using pip:

    pip install weasyprint

  2. In your Django views, import the necessary modules:

    from django.http import HttpResponse
from django.template import loader
import weasyprint

  3. Create a view function that generates the PDF from HTML content:

    def generate_pdf(request):
    # Load your HTML template
    template = loader.get_template('my_template.html')
    
    # Render the HTML content
    context = {'context_variable': 'some_value'}  # Replace with your context data
    html_content = template.render(context)
    
    # Create a PDF object
    pdf = weasyprint.HTML(string=html_content)
    
    # Generate the PDF file
    response = HttpResponse(content_type='application/pdf')
    response['Content-Disposition'] = 'attachment; filename="my_pdf.pdf"'
    pdf.write_pdf(response)
    
    return response

  4. Create a template (e.g., my_template.html) that contains the HTML content you want to convert to PDF. Customize this template as needed.

  5. In your Django urls.py, set up a URL pattern for the generate_pdf view:

    from django.urls import path
from . import views

urlpatterns = [
    # Your other URL patterns...
    path('generate_pdf/', views.generate_pdf, name='generate_pdf'),
]

  6. In your Django templates, add a link or button to trigger the PDF generation. For example:

    <a href="{% url 'generate_pdf' %}" target="_blank">Generate PDF</a>

Now, when you visit the URL associated with the "Generate PDF" link/button, Django will render the HTML content from your template and convert it to a PDF using weasyprint. The generated PDF will be presented to the user for download.

Ensure that you have the required CSS styles and HTML structure in your template to achieve the desired PDF layout and formatting. Additionally, customize the generate_pdf view and template to match your specific requirements.

Examples

  1. How to convert Django template to PDF using WeasyPrint?

    • This query demonstrates how to render a Django template to PDF using the WeasyPrint library.
    # First, ensure that WeasyPrint is installed
pip install weasyprint

    # views.py
from django.http import HttpResponse
from django.template.loader import render_to_string
import weasyprint

def generate_pdf(request):
    html_content = render_to_string('template.html', {'data': 'Hello, PDF!'})
    pdf_content = weasyprint.HTML(string=html_content).write_pdf()
    response = HttpResponse(pdf_content, content_type='application/pdf')
    response['Content-Disposition'] = 'inline; filename="document.pdf"'
    return response

  2. How to create PDF from Django views using xhtml2pdf?

    • This query explains how to convert Django views into PDF using the xhtml2pdf library.
    # Install xhtml2pdf
pip install xhtml2pdf

    # views.py
from django.http import HttpResponse
from django.template.loader import get_template
from xhtml2pdf import pisa

def render_pdf(request):
    template = get_template('template.html')
    html_content = template.render({'content': 'This is a PDF from Django!'})
    response = HttpResponse(content_type='application/pdf')
    response['Content-Disposition'] = 'inline; filename="output.pdf"'
    pisa.CreatePDF(html_content, dest=response)
    return response

  3. How to convert Django forms to PDF?

    • This query explores converting Django forms into a PDF document.
    # views.py
from django.http import HttpResponse
from django.template.loader import render_to_string
import weasyprint

def form_to_pdf(request):
    form_data = {
        'name': request.GET.get('name', 'John Doe'),
        'email': request.GET.get('email', 'example@example.com'),
    }
    html_content = render_to_string('form_template.html', form_data)
    pdf_content = weasyprint.HTML(string=html_content).write_pdf()
    response = HttpResponse(pdf_content, content_type='application/pdf')
    response['Content-Disposition'] = 'attachment; filename="form.pdf"'
    return response

  4. How to generate PDF in Django with pagination?

    • This query explains how to create a multi-page PDF with pagination in Django.
    # views.py
from django.http import HttpResponse
from django.template.loader import render_to_string
import weasyprint

def paginated_pdf(request):
    data = {'page_number': request.GET.get('page', 1)}
    html_content = render_to_string('paginated_template.html', data)
    pdf_content = weasyprint.HTML(string=html_content).write_pdf()
    response = HttpResponse(pdf_content, content_type='application/pdf')
    response['Content-Disposition'] = 'inline; filename="paginated.pdf"'
    return response

  5. How to add custom styles when converting HTML to PDF in Django?

    • This query demonstrates how to include custom CSS styles when converting HTML to PDF in Django.
    # views.py
from django.http import HttpResponse
from django.template.loader import render_to_string
import weasyprint

def styled_pdf(request):
    context = {'content': 'Styled PDF with Django'}
    html_content = render_to_string('styled_template.html', context)
    # Apply custom styles
    stylesheet = weasyprint.CSS('static/styles/pdf_styles.css')
    pdf_content = weasyprint.HTML(string=html_content).write_pdf(stylesheets=[stylesheet])
    response = HttpResponse(pdf_content, content_type='application/pdf')
    response['Content-Disposition'] = 'inline; filename="styled.pdf"'
    return response

  6. How to convert Django queryset data to PDF?

    • This query explores converting a Django queryset into a PDF document.
    # views.py
from django.http import HttpResponse
from django.template.loader import render_to_string
import weasyprint
from myapp.models import MyModel

def queryset_to_pdf(request):
    queryset = MyModel.objects.all()  # Get all records
    html_content = render_to_string('queryset_template.html', {'data': queryset})
    pdf_content = weasyprint.HTML(string=html_content).write_pdf()
    response = HttpResponse(pdf_content, content_type='application/pdf')
    response['Content-Disposition'] = 'attachment; filename="queryset.pdf"'
    return response

  7. How to render HTML to PDF in Django with download option?

    • This query demonstrates how to create a PDF in Django with an option to download the PDF file.
    # views.py
from django.http import HttpResponse
from django.template.loader import render_to_string
import weasyprint

def downloadable_pdf(request):
    html_content = render_to_string('template.html', {'message': 'Downloadable PDF!'})
    pdf_content = weasyprint.HTML(string=html_content).write_pdf()
    response = HttpResponse(pdf_content, content_type='application/pdf')
    # Set content disposition for download
    response['Content-Disposition'] = 'attachment; filename="downloadable.pdf"'
    return response

  8. How to add headers and footers when generating PDF in Django?

    • This query shows how to include custom headers and footers when creating PDF from Django.
    # views.py
from django.http import HttpResponse
from django.template.loader import render_to_string
import weasyprint

def pdf_with_headers_footers(request):
    context = {
        'header': 'This is the header',
        'footer': 'This is the footer',
        'content': 'PDF with custom headers and footers',
    }
    html_content = render_to_string('header_footer_template.html', context)
    pdf_content = weasyprint.HTML(string=html_content).write_pdf()
    response = HttpResponse(pdf_content, content_type='application/pdf')
    response['Content-Disposition'] = 'inline; filename="header_footer.pdf"'
    return response

  9. How to render HTML to PDF in Django with images and graphics?

    • This query demonstrates how to generate a PDF from Django with embedded images or graphics.
    # views.py
from django.http import HttpResponse
from django.template.loader import render_to_string
import weasyprint

def pdf_with_images(request):
    context = {'image_path': '/static/images/example.jpg'}
    html_content = render_to_string('image_template.html', context)
    pdf_content = weasyprint.HTML(string=html_content).write_pdf()
    response = HttpResponse(pdf_content, content_type='application/pdf')
    response['Content-Disposition'] = 'inline; filename="image_pdf.pdf"'
    return response

  10. How to generate PDF in Django with form input validation?

    • This query explores how to generate a PDF in Django based on validated form input.
    # views.py
from django.http import HttpResponse
from django.template.loader import render_to_string
import weasyprint
from django import forms

class PDFForm(forms.Form):
    name = forms.CharField(max_length=100)
    age = forms.IntegerField(min_value=0, max_value=120)

def validated_pdf(request):
    form = PDFForm(request.GET)
    if not form.is_valid():
        return HttpResponse("Invalid input", status=400)
    
    context = {'name': form.cleaned_data['name'], 'age': form.cleaned_data['age']}
    html_content = render_to_string('form_validation_template.html', context)
    pdf_content = weasyprint.HTML(string=html_content).write_pdf()
    response = HttpResponse(pdf_content, content_type='application/pdf')
    response['Content-Disposition'] = 'inline; filename="validated.pdf"'
    return response

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