Select the embedded bitmap image using the Selection tool.
Last updated on
Oct 22, 2026
Learn how to use the Create Object Mosaic command in Adobe Illustrator to turn a bitmap image into a grid of vector tiles.
Mosaics with more tiles create larger files and use more memory. Before you start, make sure your system has enough memory for the number of tiles you plan to use.
Create the mosaic
Select Object > Create Object Mosaic.
Enter new values and the options you want in the Create Object Mosaic dialog box.
Select OK.
Caution
Object Mosaic works only with embedded bitmap images. If your image is linked, embed it in the Links panel before you continue. To use vector artwork, rasterize it first.
Mosaic dialog box options
|
Option |
Description |
|
Number of Tiles |
Dimensions for the number of tiles. |
|
Tile Spacing |
Adjust the spacing between the tiles. |
|
Constrain Ratio |
Locks the mosaic's width and height to the original bitmap's aspect ratio. Deselect this option to prevent stretching or compressing the mosaic along either axis. |
|
Result |
Sets the mosaic tiles to color or grayscale. |
|
Resize using Percentages |
Switches the size fields from pixel dimensions to percentage values. |
|
Delete Raster |
Removes the original bitmap image after Illustrator creates the mosaic. |
|
Use Ratio |
Makes every tile a perfect square, based on the value in Number of Tiles. |
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