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Plotter (Poster Printer) Guide: Mac - Photoshop

A step-by-step guide to wide-format printing at the Main and Mudd Library.

Adobe PDF

This page focuses on printing files with Adobe Photoshop CC 2014. We recommend using this method for images.


Step 1 : Getting Started

Note: You can first check the actual size of your document by choosing "File > Properties."

  1. Select "File > Print"
  2. For Printer, choose "PLOTTER-IC-MAC" or "PLOTTER-MUDD-MAC"
  3. Click "Print Settings..."

Step 2 : Printer Properties

Step 2 : Paper Size!

Note: In this step, you are telling the printer the dimensions of your paper. You will need to adjust your file in the software so it can fit the paper, either by manually entering dimensions that reflect your desired size, or by automatically by scaling to fit paper.

  1. Click "Show Details"
  2. In "Paper Size:" select "Manage Custom Sizes"
  3. Click the "+" to add a new size.
  4. Double click "Untitled" to name the paper size.
    1. NOTE: We recommend naming the paper size after its dimensions.
  5. Enter the poster size (inches) width and height.
  6. Click OK
  7. In "Paper Size:" make sure the custom size is selected.
    1. Optinal: To select a specific roll, click "Paper Feed"
    2. Choose the roll you want to print from. The loaded paper sizes are listed on the drawers next to the roll size.
  8. Click "Save"
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Step 3 : Print Preview

Step 3 : Print Preview!

  1. In the Photoshop preview window, verify that the dimensions at the top of the page are the dimensions you chose for the custom page size.
  2. Click on the arrow to open Position & Size options.
    1. Center the file on the paper.
    2. Click "Scale to Fit Media"
    3. Manually position/scale the image to desired position/size by entering measurements (in inches) or dragging the image in the preview window.
  3. Click "Print"
  4. Release your print job from the print release station located next to the Plotter.
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Want to print a poster? Come try our Plotter! This plotter is located in the Information Commons, just down the steps from the main entrance. - see map (below)


We also have a Plotter in the Mudd Library (2nd floor, Mudd Hall) on the north end of Northwestern's Evanston campus.

Size & Cost

Paper: 28lb bond paper only
Minimum 3mm margins
24", 36", and 42" paper available.

At least one edge of print must be less than or equal to maximum available roll size.
Other edge can be any size, min. 10" max. 150"

Please see staff for information, including assistance with setting up your file to print on the Plotter!

Plotter printing costs $2.50 per square foot.
Payment is made through NUPrint. We cannot accept a chartstring for printing.

Calculate Printing Cost

Length (in) ="
Width (in) ="
Cost: $

Need Help?

Please see the Information Commons desk for questions or assistance with the Plotter in the Main library.

See the Tech Lab Consultant for assistance at the Tech Atrium (Technical Institute, MG45)

Email with any questions!