File owners can share files and folders on a read-only basis with a shared link. If you received a shared link, click it to preview the files or folder that were shared with you.
Whether you sent a shared link or received one, a link may fail to work or show a 404 error. If this happens, check the following:
Has the file or folder been deleted? To re-establish the link, restore the file or folder. As soon as you restore the file or folder, the shared link will work again.
Has the link been disabled? Sign in at dropbox.com and click Links in the left-hand sidebar. If you don't see the link in your list, you may have removed it at some point. You can always create a new link to the file of folder you want to share.
Has the link expired? If you're a Dropbox Professional or Dropbox Business user, and you set an expiration for your shared link, it may have expired. In that case, you need to create a new link to the file or folder.
Is the file in a shared folder? Did the owner change its settings? If you're a Dropbox Business user or a team user, the owner of a shared folder may have changed the sharing settings to specify that links can only be shared with other team members (and not externally).
Did an admin change sharing settings for your team. If you're a Dropbox Business user, your admin may have turned off the ability to share links with people outside the team. If so, shared links that you've created won't work for people outside the team unless your admin turns this permission back on.
Does a shared link take you back to your Dropbox? If you already have access to a file or folder (in other words, if the file owner has shared it with you before), clicking a shared link will bring you directly to your Dropbox. This works for folders too: if you already have a folder in your Dropbox, clicking a shared link that points to that folder will take you to its location in your Dropbox.
Does a shared link fail to open in your browser? If you click a shared link and it fails to open, you may be encountering a browser issue. To correct this, sign out of Dropbox and then click the shared link again.
Too many invitations
If you're a Dropbox Basic user who is creating shared links, you may get the error message You are trying to share with too many people at once. This means that you surpassed the daily limit for shared folder and link invitations. The limit resets daily, so try to share your files the next day.
Important note on copyrighted material
You should only use shareable links for files that you have the legal right to share with others (for example, documents, photos, software, music, and videos that you personally created). You do not have the right to share files unless you own the copyright in them or have been given permission by the copyright owner to share them. Purchasing or legally acquiring video, music, ebooks, or software does not give you the right to share that material with third parties over the Internet.
If you have any doubts about whether you have the legal right to share certain files, you should not share them. You represent that files shared using shareable links do not violate Dropbox’s Terms of Service and that you own all copyrights to them or have been given permission by the copyright owner to share them. Dropbox has adopted a policy of terminating the accounts of users who repeatedly infringe copyright or whose accounts are subject to multiple infringement allegations. If you repeatedly share files that infringe others’ copyrights, your account will be terminated.
For more information on Dropbox’s copyright policy, please visit Dropbox’s DMCA page.