Images and layouts (collages) can be projected to their exact size on a monitor, large screen TV or data projector screen, when in Select Size View.

In order for ProSelect to do this accurately, it must first be calibrated for that screen. This is done in the Preferences --> Display --> Calibration & Options (under the ProSelect menu on Mac, the Edit Menu on Windows).

For more details on how to do this, please refer to the Select Size View - Showing Actual Size page in ProSelect Reference Manual (under the Help menu in ProSelect).

The maximum size that you can display is limited by two things:

1. The physical size of your screen.
   
   For example, if your screen is size is 20" high then you can only show images up to this height (actually about 10% smaller than this or more if not using Mirror display Area) because ProSelect needs a small amount of space around the image.
   
   If you try to project a size that is too large for your screen, then ProSelect will make it as large as possible and display a yellow warning symbol in the bottom right corner of the image (or a blue box around the image for pre-2015r1 versions). A message will also say "Scaled to Fit" in the right corner of the Info bar at the bottom of the screen and show the displayed size.
   
   If the size that you are selecting should easily fit on your screen then likely your calibration is not correct. Try selecting a small size (eg 8" x 10") and measuring that on the screen - it should be correct if the calibration is correct.  See the article "Scaled to Fit message & Yellow Warning in Select Size View" also, or the "Select Size View" section in ProSelect Reference Manual (under the Help menu in ProSelect).
   
   
2. The maximum size that you have setup in the Print Paper sizes.
   
   When projecting images at actual size, ProSelect uses the print paper sizes that are setup in the program. It comes with a number of standard sizes by default, however, you can change or add to these using "Print Paper Sizes" (under the Orders menu). In this dialog, you can also set some sizes not to be used in Select Size view when showing images. (The sizes with the "Ruler" icon next to them will be available for selection in Select Size View)
   
   When projecting layouts at actual size, the Print Paper Sizes are used again but differently depending on whether you are viewing a "Traditional Matted Template" or a "Composite" template. In the Print Paper Sizes dialog, you can also set some sizes not to be used in Select Size view when showing Layouts. (The sizes with the "Ruler" icon next to them will be available for selection in Select Size View)
   
    

Some Things to Check:

1. Are the sizes correct when you display images at smaller sizes than for example 40x50 (e.g. try 16x20)? If not, then your calibration is not correct.
   
   
2. Are you projecting a image or a layout? If a layout, then the sizing may be different depending on whether you are setting the sizes for a Composite or Traditional Matted images. See the page "How Layouts are sized" in the ProSelect Reference Manual (under the Help menu in ProSelect) and/or the article How Layouts are Sized for further information about this.
   
   
3. Do you see a yellow warning symbol in the bottom right corner of the image (or a blue box around the image for pre-2015r1 versions) and a message will also say "Scaled to Fit" in the right corner of the Info bar at the bottom of the screen? If so then, assuming that the calibration is correct, your screen is not big enough to project that size. As mentioned above, ProSelect requires at least 10% or more (if not using "Mirror Display Area") around the image. So even if your screen height is 50" you won't be able to show a 50" high print. In this case move, the projector further away from the screen to make it larger then calibrate it again.
   
   
4. If you are still getting odd sizes, then please see the section "Still not correct? - try this test" at the end of the article Odd sizes when projecting in Select Size view.