This is page 2 of 4. "File Size" begins here.

How to use different file dimensions in Photoshop to get the results you want.

For example the dimensions of both pictures below are 500 pixels wide and 375 pixels high. Even though they are both the same size now, they were drastically different sizes while I was working on them, as noted below.

There are some effects in Photoshop Elements that show differently depending upon the dimensions of the file you are working with. Take a look at these two pictures.

Photoshop file size, I performed the exact same operations on both pictures. While in the full edit tab I used the Artistic Effects. I applied both "Dry Brush" and "Texture" for an oil paint finish. To learn more about this click here. (Link Forthcoming.)

The only difference was the dimensions of the picture files. The top photo was at its current dimensions, 500 pixels wide by 375 pixels high. Like this, the picture is unusable for anything I can think of.

The second picture was worked at the original file dimensions as my camera took it. 3872 Pixels wide X 2592 Pixels High. At this small size one cannot tell that anything at all was done to the second picture. Also unusable.

So, I guess we will need to find file dimensions somewhere in between these two in order to get good results, huh!? Well, some times, some times not.

Below is a cropping from the second picture when it is enlarged to the size it will work. 24"X30". Printed at that size it makes for a pretty nice "painting." More on this later.

Photoshop offers a way for you to see your work at full size while you are working on it. If you monitor that you will know how the finish picture will look. Unfortunately it can be confusing.

For print sizes 4"X6" up to 16"X20" I find I have to change the dimensions of my picture file in order to get the result I seek.

The screen shows I am working at about 100%. The file dimensions say that 100% is about 8”X10”. Actually, as you saw above, the finish picture has to be printed at 24” by 30” for acceptable results.

This means that when I am finished “painting” the picture, in order for it to print the way I see on the screen I have to print it at 24”X30”. Anything else will not look right.

All that to say; I find the numbers on the screen to be confusing. I have never figured out why it shows that way. Maybe someone can explain it to me. All I know for sure is the facts about it, not the reasons for it.

I know by experience which effects are problematic. When I am applying the aforementioned effects to a picture, I zoom in to about the size my finish picture will be.

I work with the picture at that zoom level. If you do this for all special effects you will be safe.

Zoom is only half of the equation. The figure above shows my file is calculated at 300 p.p.i. (Pixels per inch) And it says that it should be printed at 8"X10". This is the part that is confusing.

Continue here.