How can I change the page dimensions in a pdf file?

I need to change the dimensions of a file to 8.5 x 11 in. Is there any way to do that on a pdf file?How can I change the page dimensions in a pdf file?
With Solid Converter PDF you can change the size of the file by changing the dimensions under options/create pdf/pages and choosing the page size from the drop down menu.How can I change the page dimensions in a pdf file?
Assuming the file's not locked, in any pdf editor.
If you want to change the page dimensions in PDF files, you can try A-PDF Page Master. This program provides many kinds of page size for your to choose as new size, such as A2, A3, A4 and so on, or you can customize your wanted size in 8.5*11 Inch.

Further more, you can move, copy, paste, delete, add, combine PDF pages for easy organizing.

Get more information in below link:
u need ';Foxonic (Standard Edition or Professional Edition)';, a powerful PDF tool.



3 steps to change page dimension of PDF file :

(1) set building mode to ';One to One'; and set destination PDF file name, location.



(2) set ';Page Options'; -%26gt; set ';Page Size'; -%26gt; select ';Letter'; (8.5 x 11 inches).



(3) select source PDF files, right click selected PDF files, a menu will popup, click ';Build selected files to PDF';, then the page dimension of source PDF documents will be changed to ';Letter'; size automatically.



You can download and try it for free from here:

http://www.caisdata.com/foxonic.htm