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Making snapshots of history states

A snapshot is like a copy of a history state, with one major difference: unlike a state, the snapshot will remain on the palette for the current editing session, even if the state from which it was created is deleted. You can click a snapshot thumbnail at any time to revert your document to that stage. All snapshots (and states) are deleted when you close your document.

You should get in the habit of creating snapshots periodically as you work and before running any actions on your document. To create snapshots manually, follow one of the methods below. In Method 2, you’ll be able to choose whether the snapshot will be made from the full document, from merged layers, or from just the current layer.

To create a snapshot of a state:

Method 1 (without choosing options)

  1. On the History palette,history_pal.jpg click the state that you want to create a snapshot of.
  2. If the Show New Snapshot Dialog by Default option is off in the History Options dialog, click the New Snapshot button at the bottom of the History palette.new_snapshot.jpg If the aforementioned dialog option is on, Alt-click/Option-click the New Snapshot button. A new snapshot thumbnail will appear below the last snapshot in the upper section of the palette. A Click the last state on the palette to resume editing.

Method 2 (choosing options)

  1. Optional: To create a snapshot of a layer, click that layer on the Layers palette.
  2. Right-click/Control-click a history state and choose New Snapshot. The New Snapshot dialog opens.
  3. Type a Name for the snapshot.
  4. Choose an option from the From menu:

    Full Document creates a snapshot from all the layers on the Layers palette and is useful if you want to preserve all the edits at a particular stage of your document.

    Merged Layers merges all the layers on the Layers palette at that state into the snapshot.

    Current Layer makes a snapshot from only the currently selected layer in its current editing state.

  5. Click OK.

To make a snapshot become the current state:

  • Do either of the following:

    Click a snapshot thumbnail. If the Allow Non-Linear History option is off and you edited the document after taking that snapshot, the document will revert to the snapshot stage of editing and all the states will be dimmed; when you resume editing, all dimmed states will be discarded. If Allow Non-Linear History is on, subsequent states will remain on the palette.

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