1. Remove the backing board and matte from the traditional frame, being careful not to get fingerprints on the glass.
2. Most likely, the cutout of the matte will be slightly wider than your digital frame's screen. If this doesn't bother you, skip this step. Otherwise, have a matte custom cut with an appropriately sized inner opening. (For the 8-inch Nixplay Edge, this is 6? by 4? inches.)
3. Place small pieces of poster putty on the front corners of your digital frame (see figure A). Then place the back of the matte gently on top of the screen. Adjust as necessary to align the screen. Then press firmly on the corners.
4. Secure the digital frame to the matte with pieces of wide masking tape.
5. Set the matte and screen into your traditional frame. Insert four frame spring clips
(available at americanframe.com
and some custom framing shops) to hold everything in place (see figure B).