Just select several pixel rows at the bottom of the image, enlarge the canvas size toward the bottom, and Transform the selection vertically. Super simple.  

You are the perfect candidate for Adobe Support CHAT. You will speak with someone from India, but they are very smart, and very polite. It may take an hour or so, but every problem of this type I've…

Sounds like a disc error.   Have you run Disk Utility and tried repairing the disc? This is safe (in my experience) and goes farther than repair permissions.   If this works, you may need to either…

Sounds frustrating. Have you tried chatting with Adobe tech support? They're in India, but very smart and very polite. It may take awhile (like an hour), but they've been able to solve every issue…

You can Google "replace faces in Photoshop," and come up with several tutorials. Bear in mind that there are MANY ways to do things ... the more complex the process, the more artistic the procedure…

Yes, the PS manual is devoid of meaning in many places.   I'm the kind of arithmetic user that would not find any problems with the manual method. But I feel your pain.   It's always a good idea to…

Does the downloaded document have the ".psd" file type at the end of its name?   If it does, it could just be a corrupted file (either the original, or in the download process).

Have you ever heard of a little app called BatChmod? It is a very powerful tool to alter permissions. It's free at: http://www.lagentesoft.com/batchmod/   I don't know where the Photoshop scratch…

You said "open" but I think you meant "new."   Here's the NEW dialog (Mac, but it works alike with Windows).   I've inserted my cursor in the NEW dialog, and added a zero to width and height…

You can chat with a tech support expert in India:  http://helpx.adobe.com/contact.html   Just follow the prompts until you get to CHAT. These people are very smart (and very polite), and have all…

I've successfully used Adobe Technical Support Chat several times to solve problems like this.   Go to   http://helpx.adobe.com/contact.html   and follow the prompts, until you get the CHAT option.…