Ink is the most difficult stain to remove, because it is much like a dye itself, when attempting to remove the ink you may remove the leathers original dye. You also want to avoid placing name tags or badges on your leather. They damage the leather underneath and in extreme cases can be impossible to repair without replacing the panel. Professional Cleaning Professional cleaning should only be done when absolutely necessary and again only by a leather specialist. You shouldn't use a regular dry cleaner unless they can prove to you that they know what they are doing and that they work with leather regularly.
Most dry cleaners know a lot more about fabrics than leather.
When possible, let the cleaner know the source of the stain so they know what to do when processing. For instance, antifreeze can cause your leather to burn when cleaned. Cleaning chemicals may also weaken cement bonds. Because a slight variation in color or texture may occur, even when done by a qualified professional, always clean matching items at the same time so that the color tones will continue to match. A small amount of shrinkage may occur, but will stretch again with wear.