Resize problem

[juan1pablo2014]

Hi guys, I desing a flyer for an Event Solon (size A5), after that the client wanted the same flyer transformed in a Stand Up (72 inches x 38inches) and for some reason when I try to resize the file takes forever and my Photoshop Crash wich I don't know why, this are my are PC properties,  Intel Core i5 7600K @ 3.8 GHz, Board GIGABYTE Z270XP-SLI-CF, Crucial 8GB RAM DDR4 2400 MHz, NVIDIA GeFOrce GTX 970 G1 Gaming WINDFORCE Edition, can anyone help me out cause I have no idea whats the problem I'm having

[JJMack]

If you are trying toe  resize to 6' x 3' at 300 DPI don't do that a 6 foot poster does not need to be 300DPI.  See if you machine can resize it 6' x 3' at 100dpi.   The image will be 1/9 the size of a 300DPI image and your 6' poster will look grate printed a 100dpi.  Photoshop performance should be betted manipulating 9 time less data.

[juan1pablo2014]

Thank you so much, problem solved

[D Fosse · Accepted solution]

You're probably resampling to enormous pixel dimensions that you machine can't handle. No need for that.

In Photoshop, everything is about pixel dimensions, how many pixels wide by how many pixels high. That's what determines file size - print size is completely irrelevant. A5 is only meaningful if you also define a "pixels per inch" value. Then you get a total pixel count by simple math.

If your file is A5 at 300 ppi, that's a comfortable 1748 x 2480 pixels. No problems there.

If you resample that up to 72" x 28" and still at 300 ppi, you end up with a file of 11500 x 21500 pixels. That's a ridiculously big file, and completely unrealistic.

You don't need 300 ppi at those sizes. The bigger it is, the lower the ppi required, because it's seen from much farther away. In this case around 80 will look perfectly crisp and sharp. That's a file of around 6000 pixels high, or what a reasonably good, modern camera can deliver.

[juan1pablo2014]

Thank you so much, problem solved