Examine Presentation
Aspose.Slides for Python via .NET allows you to examine a presentation to find out its properties and understand its behavior.
Info
The PresentationInfo and DocumentProperties classes contain the properties and methods used in operations here.Check a Presentation Format
Before working on a presentation, you may want to find out what format (PPT, PPTX, ODP, and others) the presentation is in at the moment.
You can check a presentation’s format without loading the presentation. See this Python code:
import aspose.slides as slides
info1 = slides.PresentationFactory.instance.get_presentation_info("pres.pptx")
print(info1.load_format, info1.load_format == slides.LoadFormat.PPTX)
info2 = slides.PresentationFactory.instance.get_presentation_info("pres.odp")
print(info2.load_format, info2.load_format == slides.LoadFormat.ODP)
info3 = slides.PresentationFactory.instance.get_presentation_info("pres.ppt")
print(info3.load_format, info3.load_format == slides.LoadFormat.PPT)
Get Presentation Properties
This Python code shows you how to get presentation properties (information about the presentation):
import aspose.slides as slides
info = slides.PresentationFactory.instance.get_presentation_info("pres.pptx")
props = info.read_document_properties()
print(props.created_time)
print(props.subject)
print(props.title)
You may want to see the properties under the DocumentProperties class.
Update Presentation Properties
Aspose.Slides provides the PresentationInfo.update_document_properties method that allows you to make changes to presentation properties.
Let’s say we have a PowerPoint presentation with the document properties shown below.
This code example shows you how to edit some presentation properties:
file_name = "sample.pptx"
info = PresentationFactory.instance.get_presentation_info(file_name)
properties = info.read_document_properties()
properties.title = "My title"
properties.last_saved_time = datetime.now()
info.update_document_properties(properties)
info.write_binded_presentation(file_name)
The results of changing the document properties are shown below.
Useful Links
To get more information about a presentation and its security attributes, you may find these links useful: