When using "Change picture" new image should use it's own pixel count, not the picture being replaced
example: you have a 100x50 pixel logo on your slide, if you use change picture, and replace it with a 1000x500 pixel logo, it ignores the new quality/resolution and pixellates it.
Andy Gryc commented
This is a constant source of frustration. To expand on the desired feature and workflow it supports:
1) You create a presentation with lots of graphics that are temporary because they need to be approved, they need to be worked into the flow, dynamic changes are being made to the deck, etc. Those graphics come from a stock website--istock, shutterstock, Veer, Getty, dollarphoto, etc--and are provided as low resolution and watermarked "comps".
2) You spend an inordinate amount of time placing, aligning, sizing, cropping images to show the final result. Almost always when getting images for a specific purpose from stock photography, you need to crop & pan to the portion of the image that's relevant.
3) You finish your work and settle on the final slides. At that point, you go purchase all of the official images at high resolution without watermarks.
4) Now you go back through the deck and "Change Picture" on all the comped images. Unfortunately due to the vastly different sizes, the sizing & cropping is completely messed up and you need to redo it all.
It would be ideal if the "Change Picture" option had a "Replace a comp" checkbox, and that checkbox would scale the new image to the existing screen pixels, while preserving proportionally scaled crop & pan settings.
Nick Frewin commented
no i don't think you understand - it's a very common thing to do - you have a low res comp image in a presentation that's formatted / cropped / with effects.
you then replace that with a decent quality version once the stock image is purchased.
Or you get a low res version of a company logo (usually grabbed from the web) from the client, then replace that with a decent quality version when available
L Fitzgerald commented
your request would be a completely different feature. the point of "replace picture" is to allow a user to swap out images while retaining all other formatting parameters (e.g., outline, drop shadow, etc.)