I'm working on a beamer presentation with quite big (up to 8 MB) vectorial images.
They're something like high resolution spectrograms saved in vectorial graphics (and I cannot work on the code I used to create them now, so I can't lower the resolution).
I'd like to keep them vectorial because they have labels and other text that are just ugly if I convert the images in .png.
I'm using these images with transparencies and highlighting of some of their parts to point out different aspects within single figures (at the moment the editing is done with Illustrator). Thus, I sometimes have to include the same figure multiple times (and as I said, they're quite big), each time with the same base but different transparencies/highlighting.
In the case I implemented the transparencies directly within latex (I guess I'd have to use tikz?), would I still have to deal with a number of images equal to the number of transparencies I use in the presentation with that given image?
In other words, if I have the image test.pdf (8 MB) and I want to produce other 2 figures based on test.pdf with different transparencies, do I obtain a 24 MB presentation output or only a something-more-than-8-MB presentation.
I'd say the first, since each transition will create a new page in the pdf, but I'd like to have an answer from someone who's sure about it ...



I hope you can understand what I was trying to ask xD
Cheers