I am working with Windows 7 x64 on a full HD monitor, Intel i5-2500K and 8 GB RAM, currently available 5,5GB. I tried to extend photoshop's memory usage and scratch disk settings as following:
But as I try to open a 60MB TIFF file with compression, dimensions 7040×9860 (resulted by scanning with 1200ppi) I still get the mentioned message:
Why are 5,5 GB not enough to open a 60 MB file? I don't have any clues!
Update: I understand that 60 MB compressed would take much more place after decompression, which must be done by opening the file. That's why a just tried the following: I scanned the same document but chose uncompressed TIFF. The resulted file is approximately 200 MB and it can be opened by Photoshop! Well this causes more confusion…
Update 2: Here's the Photoshop's about dialog for those who are asking:
Best Answer
I had the same problem on an 8GB machine and a 12GB machine with a 12MB TIFF using PsE. I opened the file in GIMP which told me the file had a "bad null bit" (but opened it anyway). I exported this image back to hard drive with a new filename, and this GIMP output opened in Adobe fine.