Convert PPT, PPTX, and ODP to JPG in Python

Overview

Converting PowerPoint and OpenDocument presentations to JPG images helps with sharing slides, optimizing performance, and embedding content into websites or applications. Aspose.Slides for Python allows you to transform PPTX, PPT, and ODP files into high-quality JPEG images. This guide explains different methods for conversion.

With these features, it’s easy to implement your own presentation viewer and create a thumbnail for every slide. This may be useful if you want to protect presentation slides from copying or demonstrate the presentation in read-only mode. Aspose.Slides allows you to convert the whole presentation or a specific slide into image formats.

Convert Presentation Slides to JPG Images

Here are the steps to convert a PPT, PPTX, or ODP file to JPG:

Create an instance of the Presentation class.
Get the slide object of the Slide type from the Presentation.slides collection.
Create an image of the slide using the Slide.get_image(scale_x, scale_y) method.
Call the IImage.save(filename, format) method on the image object. Pass the output file name and image format as arguments.

Note: PPT, PPTX, or ODP to JPG conversion differs from conversion to other formats in the Aspose.Slides Python API. For other formats, you typically use the Presentation.save(fname, format, options) method. However, for JPG conversion, you need to use the IImage.save(filename, format) method.

import aspose.slides as slides

scale_x = 1
scale_y = scale_x

with slides.Presentation("PowerPoint_Presentation.ppt") as presentation:
    for slide in presentation.slides:
        with slide.get_image(scale_x, scale_y) as thumbnail:
            # Save the image to disk in JPEG format.
            file_name = f"Slide_{slide.slide_number}.jpg"
            thumbnail.save(file_name, slides.ImageFormat.JPEG)

Convert Slides to JPG with Customized Dimensions

To change the dimensions of the resulting JPG images, you can set the image size by passing it into the Slide.get_image(image_size) method. This allows you to generate images with specific width and height values, ensuring that the output meets your requirements for resolution and aspect ratio. This flexibility is particularly useful when generating images for web applications, reports, or documentation, where precise image dimensions are required.

import aspose.slides as slides
import aspose.pydrawing as pydrawing

image_size = pydrawing.Size(1200, 800)

with slides.Presentation("PowerPoint_Presentation.pptx") as presentation:
    for slide in presentation.slides:
        # Create a slide image of the specified size.
        with slide.get_image(image_size) as thumbnail:
            # Save the image to disk in JPEG format.
            file_name = f"Slide_{slide.slide_number}.jpg"
            thumbnail.save(file_name, slides.ImageFormat.JPEG)

Render Comments when Saving Slides as Images

Aspose.Slides for Python provides a feature that allows you to render comments on a presentation’s slides when converting them into JPG images. This functionality is particularly useful for preserving annotations, feedback, or discussions added by collaborators in PowerPoint presentations. By enabling this option, you ensure that comments are visible in the generated images, making it easier to review and share feedback without needing to open the original presentation file.

Let’s say we have a presentation file, “sample.pptx,” with a slide that contains comments:

The slide with comments

The following Python code converts the slide to a JPG image while preserving the comments:

import aspose.slides as slides
import aspose.pydrawing as pydrawing

scale_x = 1
scale_y = scale_x

with slides.Presentation("sample.pptx") as presentation:
    # Set options for the slide comments.
    comments_options = slides.export.NotesCommentsLayoutingOptions()
    comments_options.comments_position = slides.export.CommentsPositions.RIGHT
    comments_options.comments_area_width = 200
    comments_options.comments_area_color = pydrawing.Color.dark_orange

    options = slides.export.RenderingOptions()
    options.slides_layout_options = comments_options

    # Convert the first slide to an image.
    with presentation.slides[0].get_image(options, scale_x, scale_y) as thumbnail:
        thumbnail.save("Slide_1.jpg", slides.ImageFormat.JPEG)

The result:

The JPG image with comments

Convert PPT, PPTX, and ODP to JPG in Python

Overview

Convert Presentation Slides to JPG Images

Convert Slides to JPG with Customized Dimensions

Render Comments when Saving Slides as Images

See also

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