On Mon, Feb 15, 2010 at 05:16:43PM +0100, Anne van Kesteren wrote: > >You don't. The canvas is just a bitmap; it has no attached metadata. > > > >This could be changed, but various things would need to be defined about > >what happens when multiple images are drawn in, when images are drawn on > >top of other things in the canvas, when stuff is drawn on top of images > >in the canvas, etc.
Very true. Doesn't look right to expect EXIF out of a canvas. > Seems easier to take care of this by allowing extraction of metadata (some > W3C WG is working on this I think) and maybe a way to put it back in... That would be very welcome, the Blob type doesn't even seem to have a way to iterate or modify the contents, which would be required if we were to manually scan the original metadata and move it to the resized image. -- Stéphane Epardaud