[![enter image description here][1]][1]I just came across this two sentences: You press it onto an pad of ink./You press it on to an ink pad.

Collins Cobuild. COBUILD Advanced Learner’s Dictionary KINDLE-ONLY EDITION (Posición en Kindle173077). HarperCollins Publishers. Edición de Kindle. 

The thing is, if the separate use of "on and "to" changes the meaning of the sentence in contrast as when you use the preposition "onto". I think it just means the same. I am very 


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