How to create user defined paper sizes - Epson, Lightroom, Windows
For Red River Paper greeting cards, scrapbook 12x12 sheets, panorama printing, and other special projects, you need to define a custom paper size in the Epson printer properties. Below are instructions for setting a custom paper size in Lightroom.

After completing your edits, go to the Print module.

Now click the Page Setup button. On the lower left of your screen.

The Print Setup dialog appears. Choose your printer and click Properties. This will lanuch the printer properties dialog
Newer Epson Printer Driver Versions
If your printer properties do not look like these screen shots, scroll down to the older Epson driver version instructions.
On the Main tab of the printer's properties, locate and click the "User Defined..." button.

This brings up the User Defined Paper Size dialog.

Name your new paper size something easy to understand. Enter it in the dialog at the top of the menu.
Now enter the paper's width and height.
When defining width and height, ALWAYS set your smaller sheet dimension to width and larger to height.
Example - for a 7x10 greeting card 7 is the width and 10 the height regardless of the print orientation.
When you are done click OK.
The custom size will now be available for your use in the paper size drop down menu.
Note for 13x38 panorama users - the max paper width will be set to 1295.
Read our Final Important Notes.
Older Epson Printer Driver Versions
From the media size drop menu choose USER DEFINED.


Name your new paper size something easy to understand. Enter it in the dialog at the top of the menu.
Enter the paper's width and height.
SPECIAL NOTE:
When defining width and height, ALWAYS set your smaller sheet dimension to width and larger to height.
Example - on a 7x10 greeting card 7" is the width and 10" the height regardless of the print orientation.
Set your paper width and height. Notice how Epson defines the dimensions - the numbers are .01 inches. So for a 7x10 card you would assign width as 700 and height as 1000.
When you are done click OK.
Note for 13x38 panorama users - the max paper width will be set to 1295.
Going Back to Lightroom
Once you create a custom size, set media type, print quality, and color management click OK to exit the printer properties.

Once the printer properties close, you will again see the Print Setup dialog. Choose the orientation of your print then click OK.

You are now back in the Lightroom print module.
Set the cell width and height to their maximum.
You will normally set margins to their minimum value. Notice that they cannot be set to zero. This is because you are using a custom size and printers have a minimum printable margin.
Once complete, Lightroom should display a preview of your image set properly onto the custom size.
