v1.1.0

Install or upgrade: download QuickLook.Plugin.StickyPosition.qlplugin, select it in Explorer, press Space, click Install, restart QuickLook. Saved positions from 1.0.0 carry over.

Changed

• File types you haven't placed are left to QuickLook's own placement. 1.0.0 opened them in a tall column on the right; to keep that, add <DefaultPosition>0.545,0.03,0.42,0.92</DefaultPosition> to the config (see README).
• Lock position for .pdf / Unlock in the ⋯ menu. While a type is locked, dragging or resizing moves only that window; the next file of that type still opens at the locked spot.
• Menu items name the file type, and act on the window whose menu you clicked.

Fixed

• Multiple monitors: the preview opens on the monitor QuickLook chose, not the one the hidden window happened to be on.
• Fixed-size previews (folders, unknown files, the plugin installer) keep their size; only their position is remembered.
• Pinned ("prevent closing") windows: the first preview after pinning is placed; dragging a pinned window saves nothing; a new preview no longer opens exactly on top of another preview window.
• Clicking the title bar without moving the window no longer saves a position.
• A saved position can't put the title bar off-screen.
• If a QuickLook update renames the internals the plugin relies on, it writes one line to QuickLook's log instead of failing silently.

Tested on QuickLook 4.5.0.

v1.0.0

First release. Tested on QuickLook 4.5.0 (Microsoft Store). Select the .qlplugin in Explorer, press Space, click Install, restart QuickLook.