Can I close the page while a workflow runs?

Yes, once the photos have uploaded. The run goes on without the page, and its results wait in the workflow's Results.

Are workflow results saved to my Library?

Only when its Save step lists the Library or a Library folder, or when you choose Save to library on a result. Every result is kept in the workflow's Results, where it's deleted after 90 days unused (How long do images outside the Library stay?).

Does a workflow change my Library images?

No. A run works on its own copy of each Library image, so the original stays as it is.

Can I see what a run will cost before it starts?

Not as a total: add up each AI step's price per image in What each action costs. When your credits can't cover the photos, the run doesn't start, and Not enough credits says what they need.

Run a workflow on many images

A workflow runs its saved steps on every image you add: in its Results, on its card in Workflows, or straight from the Library.

A workflow takes Images, runs its steps, such as Cutout, Pad or an AI router, and ends each route with Save or Discard. Make one from a recipe (Cut out each person) or from scratch (Sort photos into folders).

Run it

Open Workflows and choose the workflow. It opens on Results.
Before the first run, choose Browse files in the middle of the page; after it, choose Run at the top right. You can also drop the photos anywhere on Results. The run starts at once.
Check the results as they arrive. Show by image, at the top right, shows what each photo gave, including No result or Failed.

Browse files or a drop takes up to 25 images at a time, Import via URL 10 links, and Browse library 100 images.

Run it from the Workflows list or the Library

Drop photos on the workflow's card, or choose Run on it.
In the Library, choose Use in workflow in an image's ⋯ menu, or tick several and choose Open in → Workflow.

What to check

The Editor view shows Ready to run, or counts the issues to fix (Fix a workflow that can't run).
A run can't be stopped, and keeps the steps it started with: edits apply to the next run.
Fewer results than images? See Why a workflow gave fewer results than images.

Credits

Building a workflow is free. Each AI step uses credits every time it runs on a photo, retries included; edit steps such as Crop, Pad and Resize are free (How credits work).