Photoshop 7 includes a neat feature that enables you to select a new document size from a pop-up menu in the New dialog box. Here's how to have your custom document sizes and specifications available, right in the pop-up menu.
When you use the menu command File> New, a dialog box opens in which you specify the size, resolution, color mode, and content of a new document. If you've added something to the Clipboard with the Copy command, the New dialog box will show the appropriate specs to match whatever you've copied. If there's nothing on the Clipboard, the most recent new document's specs will be shown.
Introduced with Photoshop 7 is the Presets pop-up menu in the New dialog box. You can select any of a number of document configurations from the menu.

You can add you own set-up to the menu, making the document sizes and configurations you use regularly available at the click of a button. If, for example, you normally produce 5x7s and 8x10s, but you print at 480 ppi rather than 300 ppi, it would be convenient to have those document sizes at that resolution in the pop-up menu. Or perhaps you have particular requirements for your Web page, and images must fit specific cells in tables. You can most certainly add your presets to the pop-up menu! Here's how.
You add the new sizes to the <New Doc Sizes.txt> file and
then save that file (with exactly the same name, in exactly the
same location). Do this:
1. Quit Photoshop.
2. Go to the Photoshop folder.
3. Open the Presets folder.
4. Double-click the file <New Doc Sizes.txt> to open it in your word processor or text editor. (You'll see the full instructions and some additional information already present in the document.)
5. At the bottom of the document (actually anywhere)
add the following elements, separated by a couple of spaces,
on a single
line:
--In quotes add the file name, such as "Pete's 8x10@480"
--Add the width in numbers, such as 8
--Add the height in numbers, such as 10
--Add the unit of measure, such as inches
--Add the resolution in dpi, such as 480 dpi
It should look like this:
"Pete's 8x10@480" 8 10 inches 480 dpi
You can add as many new document presets as you'd like, putting each on a separate
line. (Blank lines are ignored.)

6. Save the file, making sure that it saves as plain text (.txt) rather than as a Word document (.doc). Do not change the file name or location.
7. Restart Photoshop and go to File> New. Your custom sizes will appear at the bottom of the list.



Pete
Bauer is the Help Desk Director for NAPP, as well
as a Contributing Writer for Photoshop User and Mac Design
magazines. His books include "Special Edition Using
Adobe Photoshop 7" (with Jeff Foster), "Special
Edition Using Adobe Illustrator 10," "Sams Teach
Yourself Adobe Illustrator 10 in 24 Hours" (with Mordy
Golding), and "Special Edition Using Adobe Illustrator
9." Pete writes documentation for a variety of computer
graphics related products, as well as testing software
for a number of companies. As a computer graphics efficiency
consultant, Pete specializes in customized training programs.
He is based in Columbus, Ohio, and can be contacted via
