Hello
in the album we can put a file with maximum size 10mo
i dont now if its enough for a scan ?
it depends on whether you save the scan in a lossless (e.g. png, tiff) or lossy format (jpg), the size of the glass and the amount of detail in it, and the intended use.
jpg is good enough for looking at, but if someone wanted to make a glass from a jpg image, they'd probably have a bit more work to do cleaning up the compression artifacts.
since storage is relatively cheap, I scan at 600 dpi with 24 bit color and save in png format. However, the resulting files are 100's of MBs. The size can be cut way down by limiting the number of colors when scanning to 256 or post-processing to convert the slightly different colors to one color ... what you want to see is if the edges get jaggy due to reduced colors for anti-aliasing.
lower resolution and/or less colors = more jagged edges. 'course, as long as you can't see the jaggies, it doesn't matter.
if you are scanning things too big to fit on the scanner in one piece, make sure you overlap the scans around 20% so automatic image stitching software can assemble the pieces. The advantage of letting the software do it is you don't need to worry about rotation/alignment ... it figures it out.
I can make a cloud drive folder available, but experience says not to publish the location of a writable folder or people will start using it for file swapping or fill it with junk. If you want access to a writable folder to upload files that are too big to email, pm me.