Effectively, then, if I ‘pin’ your images, I am giving away rights that are simply not mine to give, and that you will not be able to get back, and I am very worried about having done this. Equally, if you ‘pin’ mine, you’re effectively converting my ‘All Rights Reserved’ Copyright Notice into a Creative Commons Licence. To make it absolutely clear: it’s not the sharing of my work that bothers me, provided this is done with my permission and with appropriate copyright statements attached; it is the nature of the contract that anyone who posts images on Pinterest are making with that company in respect of my work that is my cause for concern. And this same concern is why I’ve now deleted the pinboards I had created.I recommend that you read the article and the discussion below for its crystal clarity and the gentleness of the author. A detour to view her beautiful photographs and embroidery projects would be a worthwhile use of anyone's time.
In Reposting The Etiquette Of Attribution, calligraphist seanwes writes:
Does linking to the creator or tagging/attributing them automatically give me right to use their image?
No. Never assume this. [...] It doesn’t matter if it is attributed or unattributed. [...] Linking to the author does not give you a free pass to use their work.