Allow conversion of image data on paste

[ticky]

Before Submitting Your Feature Request

• Check that there isn't already a similar feature request to avoid creating a duplicate.
• I have seen the FAQ.

Problem

I run on a modern Mac with a Retina display, and will frequently paste screenshots directly from the ⌘⇧4 shortcut into other apps.

These screenshots are PNG images (at least, unless you change the system-wide screenshot format, which is not a well-supported tweak). Because of the large resolution and simplistic PNG compression used, these screenshots are often rather large.

One recent example is 1.75 MB as the off-clipboard PNG, and 319 KB converted to a JPEG at 80% quality using Preview. About an 80% saving!

Solution

It would be lovely if Maccy could;

1. Allow converting an image on the clipboard between formats, and/or
2. Allow pasting an image as a JPEG (or other specified image format) with a keyboard shortcut or per-app setting