Lion Safari 5.1: pdf file is not opening inside the iFrame

Maybe that is true but OSX has it's own pdf implementation and does not need Adobe Reader. The problem still exists.

I do have the same problem. It seems to work with images, but not with PDF documents. Haven't found a solution yet... No Adobe Reader plugin installed...

I think the problem must be limited to the iframe tag in particular, or frames in general. One of my websites has links to pdf files that open directly in the browser (see http://www.raffca.org.uk/docs/association_rules.pdf), but I have been unable to see a pdf if it should be loaded within a frame (such as at http://www.london-gazette.co.uk/issues/59866/supplements/14713); this latter page is not an iframe, but it is giving the same symptoms. I have removed any presence of the Adobe Reader plugin (I don't use Adobe Reader at all), so it is clearly a problem with Safari's built-in interpretation of frame/iframe PDF presentation. It's probably worth passing this on to Apple as a problem.

I already did. You can do that easily from the Safari menu!

In fact, I have just placed that feedback on the Apple site, although it is not up-to-date and doesn't give the option to select Lion as the OS! Get a grip, Apple!!!!

You're right, Gogolathome; I've just done that too, with the second web page (above) displayed: "A PDF file should be displayed in the second frame, but it is downloaded instead. Before Lion/Safari update this functioned correctly. I do not have Adobe Reader installed and other PDF files display within Safari if not within a frame/iframe."

same problem. Safari is not functioning as it was. PDFs are not loading in frame, certain websites do not work when I want to upload documents (have to go to Firefox for that), can't click on "continue" button - (i.e. - it doesn't work).

This solution will work for you. http://www.schubert-it.com/pluginpdf/

You can use this in Lion and Safari 5.1. Yes something broke and I'm sure Apple will fix it in time. But for now, this works great! I have never said this before but I think that I will be waiting until Apple rolls out an update before I ever jump into a new OS of theirs again.

I can verify that this is NOT an adobe conflict - and that it is in fact a SAFARI ISSUE. I had adobe proudcts installed, tried everything I could think of assuming it was a compatibility issue and got nowhere. So I have now done a fresh install of Lion - complete with a hard drive wipe. Before installing any software, I tried the links posted by Jan - the split frame example still doesn't work! In case apple thinks this isn't a big deal, soem people use these sorts of sites quite regularly. In my case, I'm a PhD candidate in history and spend entire months viewing digitized microfilm in split-frame environments such as Jan's link. Because of this problem created by APPLE, I've had to find other things to do until they get around what must be a simple fix (as Safari did it fine before).

The suggestion from VistaNoGo works fine for me (until Apple gets its house in order!!) http://www.schubert-it.com/pluginpdf/.

Interestingly if you do a sample HTML file like this:

<object src="test.pdf" type="application/pdf" height="50%" width="50%"></object>

You get an "Missing Plugin" message and clicking that you'll get "To view this content, you need Adobe Reader. Click More Info to visit the plug-in’s website".

Apparently Safari 5.1 does not have a PDF plugin and just downloads "unknown" iframe -content automatically.

If, as you suggest, Joni, there is no PDF plugin, how is the PDF file displayed that is opened directly in the browser, such as the first example in my posting above? The problem must be in the way Safari handles frames, rather than the native PDF plug-in itself, which will deal with whatever the browser hands to it.

The second link above should bewww.london-gazette.co.uk/issues/59866/supplements/14713

The plugin is there, and works perfectly well with Chrome.

Indicating that this is indeed a Safari 5.1 bug (there are others, like some pages not loading completely [restart needed], and some pages not scrolling [restart needed]).

Looking forward to 7.2 ... [and a new Mail.app, that's a different story ...]

HS