Card embossing is the method of raising cards and perhaps other non-metal items using tools to achieve an elevated appearance. It is most commonly used to produce patterns as well as different embroidered patterns in namecard.

There are two types of embossing: Heat embossing and dry embossing. Various technologies are required based on the embossing card techniques you select.

Heat embossing applies an elevated surface of display or pattern to cardstock, whereas dry embossing raises the sheet. Dry embossing is normally performed with an embossing device, and it can also be done manually with stencils. 

Stencil Method 

Place your stencil on top of the lightbox. You can choose any transparent material with strong sunlight behind it if you're not using a lightbox.

You may use a window, a glass table, or a transparent plate with a flashlight or a bright light behind it. The aim is to be able to see the outline of your stencil through the document. 

Layer the cardstock over the stencil. The illumination again from the lightbox would reflect through to the stencil, allowing you to track around everything easily.

Clip your stencil towards the front of the cardstock or even to the lightbox to hold it fixed as you operate. 

Switch on the lightbox, then manually emboss the name card. Exert force all around the interior edges of the stencil with your touchpad or embossing device.

You would not need to push across the whole open space because the embossing would be produced by moving along the edges.