Output formats#
This section shows you how to get slides in PDF, SVG or PNG and how to render slides into files or how to get them as Python objects.
Rendering into PDF#
By default, the .render() method on a slide deck takes a filename and creates a PDF file.
Rendering into SVG or PNG#
By setting the second parameter to "svg" or "png", you can change the output format to SVG or PNG.
from nelsie import SlideDeck
deck = SlideDeck()
# Add slides here
deck.render("output/path1", "svg") # Render slides to SVG
deck.render("output/path2", "png") # Render slides to PNG
Unlike PDF, the first parameter is not a path to a file, but to a directory where Nelsie creates SVG (or PNG) images, one image per slide page. Nelsie will create the target directory if it does not exist. Images are named in the format "X-Y-Z.svg" (or "X-Y-Z.png"), where X is the page index (zero padded), Y is the slide index and Z is a step.
In-memory rendering#
If the first parameter of the .render() method is None then Nelsie does not create files but returns the images as Python objects. It returns a list of triplets (slide_id, step, data) where data are bytes instance with the image.