This tool downloads one image at a time by design — full-batch upload/download isn't the model here, since everything processes locally with no server involved. That said, working through a large set of screenshots efficiently is mostly about the habits around each individual paste-and-download, not the tool itself.
Name files as you go, not after
Your browser lets you rename a download before it saves, or you can rename immediately after in your file manager. Renaming ten generic "download.png" files after the fact, once you've lost track of which is which, takes far longer than a five-second rename each time.
A naming pattern that scales
Something like project_step-number_description.png — for example login-bug_01_error-state.png, login-bug_02_console-log.png — sorts correctly in any file browser and stays meaningful months later, unlike a timestamp-only filename.
Keep a dedicated folder per task
Set your browser's download location, or move files immediately, into a folder scoped to the specific bug report, design review, or documentation set you're working on. Mixing screenshots from five unrelated tasks into one Downloads folder is what makes "batch processing" feel painful in the first place — the fix is mostly organizational, not technical.
Keep format and quality consistent within a set
If you're producing a series of related screenshots (a step-by-step guide, a before/after sequence), pick one format and quality setting and stick with it for the whole set — mixed formats in a single document or folder look inconsistent and complicate later edits. See format selection for picking that baseline once.
Speed comes from the habit, not a batch feature
Combined with the keyboard-shortcut workflow — capture, paste, download, rename, repeat — processing a dozen screenshots in sequence takes only marginally longer than processing one, since each step is already fast on its own.