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Aspose.Slides for Python via .NET 26.6 Release Notes

This page contains release notes for Aspose.Slides for Python via .NET 26.6

New Features and Enhancements

Key	Summary	Category	Related Documentation
SLIDESNET-45394	Support importing PDF Graphic Paths as native PowerPoint shapes	Enhancement	https://docs.aspose.com/slides/net/import-presentation/#import-powerpoint-from-pdf
SLIDESNET-45236	Using a compression type when saving a presentation as a PPTX file	Feature

Other Improvements and Changes

Key	Summary	Category	Related Documentation
SLIDESPYNET-348	Use Aspose.Slides for Net 26.6 features	Enhancement	https://releases.aspose.com/slides/net/release-notes/2026/aspose-slides-for-net-26-6-release-notes/

Public API Changes

Added New Enumeration: CompressionLevel

The new CompressionLevel enumeration has been added. This enumeration specifies ZIP compression levels for OpenXML file.

Type	Description
NONE	No compression is applied. Files are stored as-is.
LEVEL1	Fastest compression with the lowest compression ratio.
LEVEL2	Faster compression with slightly better compression ratio than CompressionLevel.LEVEL1.
LEVEL3	Provides better compression than CompressionLevel.LEVEL2 with moderate performance impact.
LEVEL4	Provides better compression than CompressionLevel.LEVEL3.
LEVEL5	Provides improved compression over CompressionLevel.LEVEL4 with additional processing time.
LEVEL6	Standard compression, offering a good balance between compression speed and file size. The default compression level.
LEVEL7	Provides higher compression than CompressionLevel.LEVEL6 with slower processing.
LEVEL8	Provides higher compression than CompressionLevel.LEVEL7.
LEVEL9	Maximum compression. Produces the smallest file size with the slowest processing speed.

Added New Property: IPptxOptions.compression_level

The new compression_level property has been added to the IPptxOptions interface and implemented in the PptxOptions class. This property allows you to control the compression level of the presentation document.

Usage example

The following example demonstrates how to save a PPTX presentation without compression:

import aspose.slides as slides

with slides.Presentation("demo.pptx") as pres:
    pptx_options = slides.export.PptxOptions()
    pptx_options.compression_level = slides.export.CompressionLevel.NONE
    pres.save("demo-out.pptx", slides.export.SaveFormat.PPTX, pptx_options)

This example shows how to save a PPTX presentation with maximum compression:

import aspose.slides as slides

with slides.Presentation("demo.pptx") as pres:
    pptx_options = slides.export.PptxOptions()
    pptx_options.compression_level = slides.export.CompressionLevel.LEVEL9
    pres.save("demo-level9.pptx", slides.export.SaveFormat.PPTX, pptx_options)