If an image was added by an admin then a "download original" button already exists in assets app. If you need this button somewhere else, this would require a simple custom app. How is the image you want to download added to perch in the first place? If it's through a form or as a member upload there are ways to download already.
I don't think you can add a download button in the Edit template, but there is a download link for each item in Assets.
If an image was added by an admin then a "download original" button already exists in assets app. If you need this button somewhere else, this would require a simple custom app. How is the image you want to download added to perch in the first place? If it's through a form or as a member upload there are ways to download already.