"Could not complete you request because it is not a valid Photoshop document"

[vasea4ever]

Hi all

First of all sorry for my bad English and I hope my solution will help you.

I had the same problem and decided to look and compare a working file with a "corrupted" one in a HEX editor. Guess what I found? For some reason, sometimes Photoshop is adding a few bytes in the beginning of the file when the file is saved, and then the same Photoshop is giving an error and complains about that files... All you have to do is to delete that unnecessarily group of bytes.

Assuming that you already know what is a HEX editor and how to use it I'll write here a few steps you can do before opening a "corrupt" PSD file:

1 - Make a back-up (copy) of the file before making any changes.
2 - Open the "corrupted" file in an usual HEX editor (NOT text editor!) and look for such groups of character just in the beginning: 8BPS and after a few bytes 8BIM another group of bytes and again 8BIM.
3 - This succession should be respected strictly: 8BPS ... 8BIM ... 8BIM. These groups should be very close to each other and it's easy to find them.
4 - Delete all bytes before 8BPS group (Shift+Delete) and save the file... =)
5 - Open it in Photoshop and Enjoy.

Hope it works for you.

If you have any problems feel free to contact me in Skype: serhio_forever