'Automating conversion from 4:3 to 16:9 in PowerPoint, including contents

I'm looking to find and/or develop an automated approach for converting existing PowerPoint presentations across aspect ratios (namely from 4:3 to 16:9 format).

I've been able to find some existing approaches for changing the master layout settings; however, I have not been able to find any solutions that actually proportionally scale AND place the existing content.

The goal would be for this to take an entire existing presentation and completely replicate its contents appropriately for the different aspect ratio.

Has anyone already developed or seen this? Any suggestions on places to start?



Solution 1:[1]

If you have Office 2010 or earlier, then PowerPoint converted all objects, text boxes, charts, to the appropriate size of the new measurements. MS removed this automatic feature in 2013 onwards, shame as the new 'double' feature offers Maximize or Ensure Fit and both are naff compared to 2010. Only circles had to have their widths altered or they weren't circular. At work I used to keep MS 2010 just for this, changing between 4:3 and 16:9 ratios, then working in 2016, until work removed 2010.

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution Source
Solution 1 Ray Kay