Adobe Photoshop CS2 On Demand [Electronic resources] نسخه متنی

Controlling History States

The History palette is a fantastic tool! It can help you go back in time and correct errors, and even take snapshots of the image, which you can use to create new documents. But all great tools come with a price. The History palettes price is consumption of RAM memory. The more you use the History palette the more RAM memory it needs. If you find Photoshop slowing down on you, or if you get warning message stating that Photoshop is running low on RAM, you might want to try a few things to help gain back some of that lost efficiency. Photoshop lets you choose between 0 and 1,000 History states. That's 1,000 undos, and while that might seem like a great thing to have, History states take up memory. You can also check on your settings. Non-Linear History requires more RAM memory to maintain. If you don't require a non-linear history, then you can turn it off. Since Photoshop uses a lot of RAM memory (64MB just to open), it makes sense that Adobe would give you a way to manage the use of that memory.

Reset to Linear History

Select the

History palette.

Click the

History Options button, and then click

History Options .

Clear the

Allow Non-Linear History check box.

Click

OK .

Purge RAM Memory

Click the

Edit (Win) or

Photoshop (Mac) menu, point to

Purge , and then select from the following options:

• 
  

  Undo.
  Removes the Undo states from History.

• 
  

  Clipboard.
  If you have used the Edit menu, Copy and Paste commands, that information is still contained in RAM memory. Use this option to purge Clipboard memory.

• 
  

  Histories.
  Select this option to purge all the states from the History palette.

• 
  

  All.
  Wipe all RAM memory clean.

IMPORTANT

The purge option has no undo. If you select any of the purge options, there is no going back, so make sure you want to purge memory.