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Given a PowerPoint presentation in .ppt format, what is the best way to programmatically and using only open source software extract an image representation (in say .jpg or .png) of each slide in the presentation?
The application will run in a Linux server environment, so installing Microsoft Office or Keynote is not an option.
The functionality that I want to achieve programmatically is similar to:
File > Export... > Pictures > JPEG)Save As > Other Formats > JPEG)
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You can also export entire slides as images directly from PowerPoint. Here's what to do: Open the PPT file and select File > Save As. In the Save As window, select an image format from the Save As Type drop-down list.
Select the PowerPoint slide/s containing locked shape(s) you need to unlock, then click 'Unlock objects' (Found beneath the Lock Object icon on the PPT Productivity Ribbon).
You should probably give unoconv a try. According to the man page, "unoconv is a command line utility that can convert any file format that OpenOffice can import, to any file format that OpenOffice is capable of exporting. "
So, to convert ppt to, say, png, you do:
unoconv -f png some-slides.ppt Should that failed, you may try JODConverter or PyODConverter from Art of Solving. For example, you can use JODConverter from command line:
java -jar lib/jodconverter-cli-2.2.0.jar document.ppt document.png Given your requirement to run on Linux, it's probably easiest to automate OpenOffice.org.
Exporting as HTML will give you a JPEG or PNG image with configurable quality for each slide.
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