I thought I'd pass on some things I learned today ... two ways to print a image with a black border using the Lightroom Print Module:
Method 1:
Really easy, but the result isn't that good.
In the Develop Module "Effects" panel, Post Crop Vignetting, set:
- Amount = -100
- Midpoint = 0
- Roundness = -100
- Feather = 0
- Highlights = 0
Disadvantages = Crops (masks) part of the image and the corners are round instead of square.
Method 2:
Takes a bit of effort to set up but once you save everything to a template it's easy peasy after that. The following example is for a 4 x 6 image with 1/8" black border.
1. In Photoshop create a low res 4 x 6 black jpeg (portrait orientation) ... something like 6" x 72 PPI for the long side. You can use a much higher res if you want, but since it's just a black box it doesn't matter and a lower res will prevent the Identity Plate tool in the Print Module from giving you a warning that the image is too large.
2. In the Print Module create a template. Mine is called: "4 x 6 - Epson Glossy, 1/8" Black Border"
3. Click the "Page Setup" button at the lower left to set your printer driver up.
For my Epson R3000 I had to select the following under "Print Setup":
- Paper size = 4 x 6
- Source = Sheet (Borderless)
and then under Properties I clicked the "Expansion" button which lets you select how the image expands to fill the paper and I changed the setting from "Auto-Expand" to "Retain Size". This bit is really important!.
4. Under the "Image Settings" panel at the top right I've checked "Zoomed to Fill" and "Rotate to Fit"
5. Under Layout:
- All margins should be set to zero
- Paper Grid is 1, 1
- Cell Size Height = 5.75"
- Cell Size Width = 3.75"
6. Under Page:
- I checked "Background" and made it black. However with Zoomed to Fill it's probably not required (I'll test that another time). Doesn't hurt anything though.
- Check Identity Plate and click the tiny drop down arrow (upside down triangle) in the bottom right of the identity plate image box
- Pick "Edit" and select "Use a graphical identity plate"
- Select the black jpeg image you made for the identity plate
- Depending on the resolution you used to make the image you'll need to scale the image to fill the image area
- Check "Render Behind Image". Now you should see your image with a nice 1/8" black border 
7. To save your setup, right click over the title of the template you created (DON'T LEFT CLICK OR YOU'LL BE BACK TO STEP 3) and click "Update with current setting"
.... and you're done! Now just print the image with your normal "Print Job" settings. For every other 4 x 6 image you ever need to add a black border to it's now a quick 1 click process
I hope this helps some of you 




