In Mac OS X, you can set your Dropbox folder as an option in the Print/PDF menu. This is useful if you want to save articles/web pages to your Dropbox which you can then go on to view from other computers as a PDF document.

Instructions

    1. Navigate to your user account’s Library folder.
      • Note that, in addition to the individual Library folders created for each user account, there are two other distinct, separate folders named Library in use in OS X. By default, these other folders are global so changes made to them affect all users as well as likely require an administrative password, whereas the Library folder in your user account contains only data and settings applicable to you and therefore does not require administrative access to make changes nor does it affect any other user of your machine.
      • If in doubt, the easiest way to get to your user account Library folder is to switch over to Finder and under the “Go” menu, choose “Go To Folder,” and type
        ~/Library

        or

        /Users/YourUsernameHere/Library
    2. Either entry will direct you to your user account’s Library folder. This will also remove any possibility of navigating to the wrong Library folder.
    3. Once inside your user account’s Library folder, look for a folder named PDF Services; if one does not exist, create one.
    4. Now, create an alias for your Dropbox folder and drag it into the PDF Services folder referenced in step 2.
    5. Open any URL in your web browser and select “Print”.
    6. Click the “PDF” button in the lower left hand corner of the dialog box and on the drop down menu that appears, if everything has worked, as it should, there will be an entry that says “Dropbox,” which represents the Dropbox folder alias you created.
    7. Click it to save the current web page as a PDF file that goes directly to your Dropbox folder!

Troubleshooting

  • The Dropbox alias you created doesn’t show up on the “PDF” dropdown menu.
    • Try either quitting the Finder if you have such an option enabled or logging out and then back in/rebooting to see if the alias then registers with OS X’s PDF Service. If it’s still not there, double check the name of the folder you placed the alias in; it should be exactly PDF Services with one single space between PDF and the word Services; capitalization and case sensitivity isn’t relevant at this point in time in OS X but it’s just around the bend so making sure the appropriate letters are capitalized is a good idea too to avoid future problems.
  • The PDF lacks images, backgrounds, colors, or other design style elements, perhaps even looking like just a simple text document.
    • There’s not much you can do to fix this. In some browsers, like Firefox, you can play around with settings in the about:config dialog to try to get pages to print (and therefore also export to PDF) so they look like like they do in the web browser. That doesn’t always help though. Some web pages have a link to a “printer friendly” version of their page that may be styled differently and especially for printing so as to look more like the page does in a browser.

Inspiration for the above & more details about OS X’s PDF Services are available from this article:
http://www.macworld.com/article/43776/2005/03/mayosxhints.html