I'm building a table to compare features in 2 commercial products. I've created several small (22 px square) graphics in AI (saved as PDFs). I've started adding these graphics in the cells, but ID seems to always create small margins on the top, left, and bottom that I have not yet figured out how to get rid of. My goal is to create a pattern of tiles with no perceptable grout lines between the tiles. Is this possible? If it makes a difference, I used File->Place to insert the first instance of the PDF and Copy/Paste for subsequent instances.
Select the cells and use the Table panel to change the cell margins.
Also, Illustrator files are not measured in pixels. What Illustrator wrongly cells pixels should instead be called points. Pixels alone have no physically measurable size, but all Illustrator files do. Illustrator assumes a resolution of 72 ppi, making a 22 pixel image measure 22 points.