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Creating SVG Image using PyCairo

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In this article we will see how we can create SVG file using PyCairo in Python. 

SVG : An SVG file is a graphics file that uses a two-dimensional graphic vector format that defines images using an XML-based text format. As a standard format for showing vector graphics on the web, SVG files are developed.

PyCairo : It is a Python module providing bindings for the cairo graphics library.This library is used for creating SVG i.e vector files in python. In order to install the pycairo module we will use the command given below 


pip install pycairo

Opening SVG file : The easiest and quickest way to open an SVG file to view it (read only) is with a modern web browser like Chrome, Firefox, Edge, or Internet Explorer—nearly all of them should provide some sort of rendering support for the SVG format. 

Steps-by-step Approach: 
1. Import the cairo module. 
2. Create an SVG surface and add context to it. 
3. For creating a small face add two rectangles for eyes. 
4. Add a curve line for the smile. 
5. Set the color and width of the context. 

Below is the complete program based on the above approach:


# importing pycairo
import cairo
# creating a SVG surface
# here geek is file name & 700, 700 is dimension
with cairo.SVGSurface("geek.svg", 700, 700) as surface:
    # creating a cairo context object
    context = cairo.Context(surface)
    # creating a rectangle(square) for left eye
    context.rectangle(100, 100, 100, 100)
    # creating a rectangle(square) for right eye
    context.rectangle(500, 100, 100, 100)
    # creating position for the curves
    x, y, x1, y1 = 0.1, 0.5, 0.4, 0.9
    x2, y2, x3, y3 = 0.4, 0.1, 0.9, 0.6
    # setting scale of the context
    context.scale(700, 700)
    # setting line width of the context
    # move the context to x,y position
    context.move_to(x, y)
    # draw the curve for smile
    context.curve_to(x1, y1, x2, y2, x3, y3)
    # setting color of the context
    context.set_source_rgba(0.4, 1, 0.4, 1)
    # stroke out the color and width property
# printing message when file is saved
print("File Saved")



Last Updated : 12 Nov, 2020
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