google-drivegoogle-slides
Google Presentations allows you to crop and re-size imported images into a presentation, but the changes aren't permanent.
Is it possible to make image changes permanent and therefore save filesize in a Google Presentation? If so, how?
(It would be great to do it straight from the app rather than cropping in an external application and re-uploading content.)
Unfortunately page numbers in Presentations hasn't been implemented yet.
We don't currently support master slide functionality, so you'll need to insert numbers and logos manually.
Its likely that i will be in the future - but no idea when.
Someone on another forum suggested a workaround by using the features built into Adobe Acrobat to add the page numbers (Open the document in acrobat, open the tools menu, goto Pages > Header and Footer > Add Footer/Header)
Yup, you can set the background color to be semi-transparent. Use the custom color option, it gives you the ability to set transparency.
The result will be..
Best Answer
At this time, changes made to images inserted to files of the Google Docs Suite (Docs, Drawings, Sheets, Slides, ...) could be reset but those changes could not be made permanent for the inserted image. It's worth to say that Drawings could be web published as images that later could be inserted to other files.
References
Crop and adjust images in a document or presentation - Docs Help
Publish a document, spreadsheet, presentation, or drawing - Docs Help